Home / 21,937.59-32,909.90-7,145.37

Finding the Fourth Proportional to 21,937.59, 32,909.90 and 7,145.37

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Solution

The fourth proportional to 21,937.59, 32,909.90 and 7,145.37 is: 10,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.59 : 32,909.90 = 7,145.37 : x
  2. Step 2: Convert to fraction form
    21,937.59/32,909.90 = 7,145.37/x
  3. Step 3: Cross multiply
    21,937.59x = 32,909.90 × 7,145.37
  4. Step 4: Simplify right side
    21,937.59x = 235,153,376.44
  5. Step 5: Solve for x
    x = 235,153,376.44/21,937.59
  6. Step 6: Final answer
    x = 10,719.20

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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.