Home / 38,809.98-53,554.23-21,810.30

Finding the Fourth Proportional to 38,809.98, 53,554.23 and 21,810.30

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Solution

The fourth proportional to 38,809.98, 53,554.23 and 21,810.30 is: 30,096.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809.98 : 53,554.23 = 21,810.30 : x
  2. Step 2: Convert to fraction form
    38,809.98/53,554.23 = 21,810.30/x
  3. Step 3: Cross multiply
    38,809.98x = 53,554.23 × 21,810.30
  4. Step 4: Simplify right side
    38,809.98x = 1,168,033,822.57
  5. Step 5: Solve for x
    x = 1,168,033,822.57/38,809.98
  6. Step 6: Final answer
    x = 30,096.22

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Double scale
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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.