Home / 42,265.05-63,403.76-12,685.23

Finding the Fourth Proportional to 42,265.05, 63,403.76 and 12,685.23

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Solution

The fourth proportional to 42,265.05, 63,403.76 and 12,685.23 is: 19,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,265.05 : 63,403.76 = 12,685.23 : x
  2. Step 2: Convert to fraction form
    42,265.05/63,403.76 = 12,685.23/x
  3. Step 3: Cross multiply
    42,265.05x = 63,403.76 × 12,685.23
  4. Step 4: Simplify right side
    42,265.05x = 804,291,278.46
  5. Step 5: Solve for x
    x = 804,291,278.46/42,265.05
  6. Step 6: Final answer
    x = 19,029.70

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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.