Home / 31,862.81-47,753.33-13,155.98

Finding the Fourth Proportional to 31,862.81, 47,753.33 and 13,155.98

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Solution

The fourth proportional to 31,862.81, 47,753.33 and 13,155.98 is: 19,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.81 : 47,753.33 = 13,155.98 : x
  2. Step 2: Convert to fraction form
    31,862.81/47,753.33 = 13,155.98/x
  3. Step 3: Cross multiply
    31,862.81x = 47,753.33 × 13,155.98
  4. Step 4: Simplify right side
    31,862.81x = 628,242,015.14
  5. Step 5: Solve for x
    x = 628,242,015.14/31,862.81
  6. Step 6: Final answer
    x = 19,717.10

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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.