Home / 21,987.14-32,988-14,620.60

Finding the Fourth Proportional to 21,987.14, 32,988 and 14,620.60

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Solution

The fourth proportional to 21,987.14, 32,988 and 14,620.60 is: 21,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.14 : 32,988 = 14,620.60 : x
  2. Step 2: Convert to fraction form
    21,987.14/32,988 = 14,620.60/x
  3. Step 3: Cross multiply
    21,987.14x = 32,988 × 14,620.60
  4. Step 4: Simplify right side
    21,987.14x = 482,304,187.86
  5. Step 5: Solve for x
    x = 482,304,187.86/21,987.14
  6. Step 6: Final answer
    x = 21,935.74

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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.