Home / 21,700.20-32,555.32-6,909.10

Finding the Fourth Proportional to 21,700.20, 32,555.32 and 6,909.10

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Solution

The fourth proportional to 21,700.20, 32,555.32 and 6,909.10 is: 10,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.20 : 32,555.32 = 6,909.10 : x
  2. Step 2: Convert to fraction form
    21,700.20/32,555.32 = 6,909.10/x
  3. Step 3: Cross multiply
    21,700.20x = 32,555.32 × 6,909.10
  4. Step 4: Simplify right side
    21,700.20x = 224,927,862.75
  5. Step 5: Solve for x
    x = 224,927,862.75/21,700.20
  6. Step 6: Final answer
    x = 10,365.24

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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.