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Finding the Fourth Proportional to 27,938, 38,554.48 and 15,362.48

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Solution

The fourth proportional to 27,938, 38,554.48 and 15,362.48 is: 21,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938 : 38,554.48 = 15,362.48 : x
  2. Step 2: Convert to fraction form
    27,938/38,554.48 = 15,362.48/x
  3. Step 3: Cross multiply
    27,938x = 38,554.48 × 15,362.48
  4. Step 4: Simplify right side
    27,938x = 592,292,427.91
  5. Step 5: Solve for x
    x = 592,292,427.91/27,938
  6. Step 6: Final answer
    x = 21,200.24

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Half scale
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Double scale
Find fourth proportional to 27,939, 38,555.86 and 15,363.48
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.