Home / 42,030.62-63,045.15-10,440.75

Finding the Fourth Proportional to 42,030.62, 63,045.15 and 10,440.75

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Solution

The fourth proportional to 42,030.62, 63,045.15 and 10,440.75 is: 15,660.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,030.62 : 63,045.15 = 10,440.75 : x
  2. Step 2: Convert to fraction form
    42,030.62/63,045.15 = 10,440.75/x
  3. Step 3: Cross multiply
    42,030.62x = 63,045.15 × 10,440.75
  4. Step 4: Simplify right side
    42,030.62x = 658,238,649.86
  5. Step 5: Solve for x
    x = 658,238,649.86/42,030.62
  6. Step 6: Final answer
    x = 15,660.93

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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.