Home / 23,390.28-32,279.40-13,320.24

Finding the Fourth Proportional to 23,390.28, 32,279.40 and 13,320.24

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Solution

The fourth proportional to 23,390.28, 32,279.40 and 13,320.24 is: 18,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.28 : 32,279.40 = 13,320.24 : x
  2. Step 2: Convert to fraction form
    23,390.28/32,279.40 = 13,320.24/x
  3. Step 3: Cross multiply
    23,390.28x = 32,279.40 × 13,320.24
  4. Step 4: Simplify right side
    23,390.28x = 429,969,355.06
  5. Step 5: Solve for x
    x = 429,969,355.06/23,390.28
  6. Step 6: Final answer
    x = 18,382.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.