Home / 42,712.35-64,025.64-14,613.18

Finding the Fourth Proportional to 42,712.35, 64,025.64 and 14,613.18

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Solution

The fourth proportional to 42,712.35, 64,025.64 and 14,613.18 is: 21,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.35 : 64,025.64 = 14,613.18 : x
  2. Step 2: Convert to fraction form
    42,712.35/64,025.64 = 14,613.18/x
  3. Step 3: Cross multiply
    42,712.35x = 64,025.64 × 14,613.18
  4. Step 4: Simplify right side
    42,712.35x = 935,618,201.94
  5. Step 5: Solve for x
    x = 935,618,201.94/42,712.35
  6. Step 6: Final answer
    x = 21,905.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.