Home / 38,478.17-53,129.93-29,511.47

Finding the Fourth Proportional to 38,478.17, 53,129.93 and 29,511.47

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Solution

The fourth proportional to 38,478.17, 53,129.93 and 29,511.47 is: 40,748.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.17 : 53,129.93 = 29,511.47 : x
  2. Step 2: Convert to fraction form
    38,478.17/53,129.93 = 29,511.47/x
  3. Step 3: Cross multiply
    38,478.17x = 53,129.93 × 29,511.47
  4. Step 4: Simplify right side
    38,478.17x = 1,567,942,335.30
  5. Step 5: Solve for x
    x = 1,567,942,335.30/38,478.17
  6. Step 6: Final answer
    x = 40,748.88

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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.