Home / 38,151.14-52,646.47-21,154.40

Finding the Fourth Proportional to 38,151.14, 52,646.47 and 21,154.40

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Solution

The fourth proportional to 38,151.14, 52,646.47 and 21,154.40 is: 29,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,151.14 : 52,646.47 = 21,154.40 : x
  2. Step 2: Convert to fraction form
    38,151.14/52,646.47 = 21,154.40/x
  3. Step 3: Cross multiply
    38,151.14x = 52,646.47 × 21,154.40
  4. Step 4: Simplify right side
    38,151.14x = 1,113,704,168.85
  5. Step 5: Solve for x
    x = 1,113,704,168.85/38,151.14
  6. Step 6: Final answer
    x = 29,191.90

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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.