Home / 21,585.04-32,387.64-11,191.12

Finding the Fourth Proportional to 21,585.04, 32,387.64 and 11,191.12

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Solution

The fourth proportional to 21,585.04, 32,387.64 and 11,191.12 is: 16,791.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.04 : 32,387.64 = 11,191.12 : x
  2. Step 2: Convert to fraction form
    21,585.04/32,387.64 = 11,191.12/x
  3. Step 3: Cross multiply
    21,585.04x = 32,387.64 × 11,191.12
  4. Step 4: Simplify right side
    21,585.04x = 362,453,965.76
  5. Step 5: Solve for x
    x = 362,453,965.76/21,585.04
  6. Step 6: Final answer
    x = 16,791.91

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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.