Home / 15,480.72-21,354.12-14,443.92

Finding the Fourth Proportional to 15,480.72, 21,354.12 and 14,443.92

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Solution

The fourth proportional to 15,480.72, 21,354.12 and 14,443.92 is: 19,923.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.72 : 21,354.12 = 14,443.92 : x
  2. Step 2: Convert to fraction form
    15,480.72/21,354.12 = 14,443.92/x
  3. Step 3: Cross multiply
    15,480.72x = 21,354.12 × 14,443.92
  4. Step 4: Simplify right side
    15,480.72x = 308,437,200.95
  5. Step 5: Solve for x
    x = 308,437,200.95/15,480.72
  6. Step 6: Final answer
    x = 19,923.96

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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.