Home / 21,988.14-32,989.50-14,621.60

Finding the Fourth Proportional to 21,988.14, 32,989.50 and 14,621.60

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Solution

The fourth proportional to 21,988.14, 32,989.50 and 14,621.60 is: 21,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.14 : 32,989.50 = 14,621.60 : x
  2. Step 2: Convert to fraction form
    21,988.14/32,989.50 = 14,621.60/x
  3. Step 3: Cross multiply
    21,988.14x = 32,989.50 × 14,621.60
  4. Step 4: Simplify right side
    21,988.14x = 482,359,273.20
  5. Step 5: Solve for x
    x = 482,359,273.20/21,988.14
  6. Step 6: Final answer
    x = 21,937.25

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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.