Home / 42,283.93-63,420.85-11,121.61

Finding the Fourth Proportional to 42,283.93, 63,420.85 and 11,121.61

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Solution

The fourth proportional to 42,283.93, 63,420.85 and 11,121.61 is: 16,681.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,283.93 : 63,420.85 = 11,121.61 : x
  2. Step 2: Convert to fraction form
    42,283.93/63,420.85 = 11,121.61/x
  3. Step 3: Cross multiply
    42,283.93x = 63,420.85 × 11,121.61
  4. Step 4: Simplify right side
    42,283.93x = 705,341,959.57
  5. Step 5: Solve for x
    x = 705,341,959.57/42,283.93
  6. Step 6: Final answer
    x = 16,681.09

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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.