Home / 31,337.48-43,252.98-20,140.04

Finding the Fourth Proportional to 31,337.48, 43,252.98 and 20,140.04

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Solution

The fourth proportional to 31,337.48, 43,252.98 and 20,140.04 is: 27,797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.48 : 43,252.98 = 20,140.04 : x
  2. Step 2: Convert to fraction form
    31,337.48/43,252.98 = 20,140.04/x
  3. Step 3: Cross multiply
    31,337.48x = 43,252.98 × 20,140.04
  4. Step 4: Simplify right side
    31,337.48x = 871,116,747.32
  5. Step 5: Solve for x
    x = 871,116,747.32/31,337.48
  6. Step 6: Final answer
    x = 27,797.92

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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.