Home / 23,280.80-32,117.08-15,521.44

Finding the Fourth Proportional to 23,280.80, 32,117.08 and 15,521.44

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Solution

The fourth proportional to 23,280.80, 32,117.08 and 15,521.44 is: 21,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,280.80 : 32,117.08 = 15,521.44 : x
  2. Step 2: Convert to fraction form
    23,280.80/32,117.08 = 15,521.44/x
  3. Step 3: Cross multiply
    23,280.80x = 32,117.08 × 15,521.44
  4. Step 4: Simplify right side
    23,280.80x = 498,503,330.20
  5. Step 5: Solve for x
    x = 498,503,330.20/23,280.80
  6. Step 6: Final answer
    x = 21,412.64

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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.