Home / 27,938.21-38,555.57-15,363.41

Finding the Fourth Proportional to 27,938.21, 38,555.57 and 15,363.41

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Solution

The fourth proportional to 27,938.21, 38,555.57 and 15,363.41 is: 21,201.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.21 : 38,555.57 = 15,363.41 : x
  2. Step 2: Convert to fraction form
    27,938.21/38,555.57 = 15,363.41/x
  3. Step 3: Cross multiply
    27,938.21x = 38,555.57 × 15,363.41
  4. Step 4: Simplify right side
    27,938.21x = 592,344,875.32
  5. Step 5: Solve for x
    x = 592,344,875.32/27,938.21
  6. Step 6: Final answer
    x = 21,201.97

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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.