Home / 31,411.14-43,349.85-17,986.62

Finding the Fourth Proportional to 31,411.14, 43,349.85 and 17,986.62

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Solution

The fourth proportional to 31,411.14, 43,349.85 and 17,986.62 is: 24,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.14 : 43,349.85 = 17,986.62 : x
  2. Step 2: Convert to fraction form
    31,411.14/43,349.85 = 17,986.62/x
  3. Step 3: Cross multiply
    31,411.14x = 43,349.85 × 17,986.62
  4. Step 4: Simplify right side
    31,411.14x = 779,717,279.01
  5. Step 5: Solve for x
    x = 779,717,279.01/31,411.14
  6. Step 6: Final answer
    x = 24,822.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.