Home / 40,721.61-61,095.17-12,259.69

Finding the Fourth Proportional to 40,721.61, 61,095.17 and 12,259.69

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Solution

The fourth proportional to 40,721.61, 61,095.17 and 12,259.69 is: 18,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,721.61 : 61,095.17 = 12,259.69 : x
  2. Step 2: Convert to fraction form
    40,721.61/61,095.17 = 12,259.69/x
  3. Step 3: Cross multiply
    40,721.61x = 61,095.17 × 12,259.69
  4. Step 4: Simplify right side
    40,721.61x = 749,007,844.70
  5. Step 5: Solve for x
    x = 749,007,844.70/40,721.61
  6. Step 6: Final answer
    x = 18,393.38

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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.