Home / 38,151.16-52,650.28-21,154.32

Finding the Fourth Proportional to 38,151.16, 52,650.28 and 21,154.32

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Solution

The fourth proportional to 38,151.16, 52,650.28 and 21,154.32 is: 29,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,151.16 : 52,650.28 = 21,154.32 : x
  2. Step 2: Convert to fraction form
    38,151.16/52,650.28 = 21,154.32/x
  3. Step 3: Cross multiply
    38,151.16x = 52,650.28 × 21,154.32
  4. Step 4: Simplify right side
    38,151.16x = 1,113,780,871.21
  5. Step 5: Solve for x
    x = 1,113,780,871.21/38,151.16
  6. Step 6: Final answer
    x = 29,193.89

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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.