Home / 21,423.58-32,079.48-17,240.74

Finding the Fourth Proportional to 21,423.58, 32,079.48 and 17,240.74

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Solution

The fourth proportional to 21,423.58, 32,079.48 and 17,240.74 is: 25,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.58 : 32,079.48 = 17,240.74 : x
  2. Step 2: Convert to fraction form
    21,423.58/32,079.48 = 17,240.74/x
  3. Step 3: Cross multiply
    21,423.58x = 32,079.48 × 17,240.74
  4. Step 4: Simplify right side
    21,423.58x = 553,073,974.02
  5. Step 5: Solve for x
    x = 553,073,974.02/21,423.58
  6. Step 6: Final answer
    x = 25,816.13

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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.