Home / 21,987.80-32,957.40-9,505.70

Finding the Fourth Proportional to 21,987.80, 32,957.40 and 9,505.70

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Solution

The fourth proportional to 21,987.80, 32,957.40 and 9,505.70 is: 14,248.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.80 : 32,957.40 = 9,505.70 : x
  2. Step 2: Convert to fraction form
    21,987.80/32,957.40 = 9,505.70/x
  3. Step 3: Cross multiply
    21,987.80x = 32,957.40 × 9,505.70
  4. Step 4: Simplify right side
    21,987.80x = 313,283,157.18
  5. Step 5: Solve for x
    x = 313,283,157.18/21,987.80
  6. Step 6: Final answer
    x = 14,248.04

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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.