Home / 38,397.08-52,985.76-21,400.76

Finding the Fourth Proportional to 38,397.08, 52,985.76 and 21,400.76

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Solution

The fourth proportional to 38,397.08, 52,985.76 and 21,400.76 is: 29,531.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,397.08 : 52,985.76 = 21,400.76 : x
  2. Step 2: Convert to fraction form
    38,397.08/52,985.76 = 21,400.76/x
  3. Step 3: Cross multiply
    38,397.08x = 52,985.76 × 21,400.76
  4. Step 4: Simplify right side
    38,397.08x = 1,133,935,533.18
  5. Step 5: Solve for x
    x = 1,133,935,533.18/38,397.08
  6. Step 6: Final answer
    x = 29,531.82

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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.