Home / 38,124.95-52,616.10-21,132.87

Finding the Fourth Proportional to 38,124.95, 52,616.10 and 21,132.87

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Solution

The fourth proportional to 38,124.95, 52,616.10 and 21,132.87 is: 29,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,124.95 : 52,616.10 = 21,132.87 : x
  2. Step 2: Convert to fraction form
    38,124.95/52,616.10 = 21,132.87/x
  3. Step 3: Cross multiply
    38,124.95x = 52,616.10 × 21,132.87
  4. Step 4: Simplify right side
    38,124.95x = 1,111,929,201.21
  5. Step 5: Solve for x
    x = 1,111,929,201.21/38,124.95
  6. Step 6: Final answer
    x = 29,165.40

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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.