Home / 42,818.28-64,227.90-19,127.04

Finding the Fourth Proportional to 42,818.28, 64,227.90 and 19,127.04

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Solution

The fourth proportional to 42,818.28, 64,227.90 and 19,127.04 is: 28,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,818.28 : 64,227.90 = 19,127.04 : x
  2. Step 2: Convert to fraction form
    42,818.28/64,227.90 = 19,127.04/x
  3. Step 3: Cross multiply
    42,818.28x = 64,227.90 × 19,127.04
  4. Step 4: Simplify right side
    42,818.28x = 1,228,489,612.42
  5. Step 5: Solve for x
    x = 1,228,489,612.42/42,818.28
  6. Step 6: Final answer
    x = 28,690.77

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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.