Home / 22,883.21-31,562.52-21,000.87

Finding the Fourth Proportional to 22,883.21, 31,562.52 and 21,000.87

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Solution

The fourth proportional to 22,883.21, 31,562.52 and 21,000.87 is: 28,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,883.21 : 31,562.52 = 21,000.87 : x
  2. Step 2: Convert to fraction form
    22,883.21/31,562.52 = 21,000.87/x
  3. Step 3: Cross multiply
    22,883.21x = 31,562.52 × 21,000.87
  4. Step 4: Simplify right side
    22,883.21x = 662,840,182.28
  5. Step 5: Solve for x
    x = 662,840,182.28/22,883.21
  6. Step 6: Final answer
    x = 28,966.23

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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.