Home / 27,354.32-37,747.85-15,420.13

Finding the Fourth Proportional to 27,354.32, 37,747.85 and 15,420.13

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Solution

The fourth proportional to 27,354.32, 37,747.85 and 15,420.13 is: 21,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,354.32 : 37,747.85 = 15,420.13 : x
  2. Step 2: Convert to fraction form
    27,354.32/37,747.85 = 15,420.13/x
  3. Step 3: Cross multiply
    27,354.32x = 37,747.85 × 15,420.13
  4. Step 4: Simplify right side
    27,354.32x = 582,076,698.40
  5. Step 5: Solve for x
    x = 582,076,698.40/27,354.32
  6. Step 6: Final answer
    x = 21,279.15

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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.