Home / 21,925.20-32,887.80-12,059.40

Finding the Fourth Proportional to 21,925.20, 32,887.80 and 12,059.40

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Solution

The fourth proportional to 21,925.20, 32,887.80 and 12,059.40 is: 18,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.20 : 32,887.80 = 12,059.40 : x
  2. Step 2: Convert to fraction form
    21,925.20/32,887.80 = 12,059.40/x
  3. Step 3: Cross multiply
    21,925.20x = 32,887.80 × 12,059.40
  4. Step 4: Simplify right side
    21,925.20x = 396,607,135.32
  5. Step 5: Solve for x
    x = 396,607,135.32/21,925.20
  6. Step 6: Final answer
    x = 18,089.10

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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.