Home / 20,822.60-31,248.30-14,983.40

Finding the Fourth Proportional to 20,822.60, 31,248.30 and 14,983.40

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Solution

The fourth proportional to 20,822.60, 31,248.30 and 14,983.40 is: 22,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.60 : 31,248.30 = 14,983.40 : x
  2. Step 2: Convert to fraction form
    20,822.60/31,248.30 = 14,983.40/x
  3. Step 3: Cross multiply
    20,822.60x = 31,248.30 × 14,983.40
  4. Step 4: Simplify right side
    20,822.60x = 468,205,778.22
  5. Step 5: Solve for x
    x = 468,205,778.22/20,822.60
  6. Step 6: Final answer
    x = 22,485.46

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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.