Home / 31,363.20-47,044.80-18,897.30

Finding the Fourth Proportional to 31,363.20, 47,044.80 and 18,897.30

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Solution

The fourth proportional to 31,363.20, 47,044.80 and 18,897.30 is: 28,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.20 : 47,044.80 = 18,897.30 : x
  2. Step 2: Convert to fraction form
    31,363.20/47,044.80 = 18,897.30/x
  3. Step 3: Cross multiply
    31,363.20x = 47,044.80 × 18,897.30
  4. Step 4: Simplify right side
    31,363.20x = 889,019,699.04
  5. Step 5: Solve for x
    x = 889,019,699.04/31,363.20
  6. Step 6: Final answer
    x = 28,345.95

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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.