Home / 28,225.12-38,940.96-16,288.24

Finding the Fourth Proportional to 28,225.12, 38,940.96 and 16,288.24

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Solution

The fourth proportional to 28,225.12, 38,940.96 and 16,288.24 is: 22,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.12 : 38,940.96 = 16,288.24 : x
  2. Step 2: Convert to fraction form
    28,225.12/38,940.96 = 16,288.24/x
  3. Step 3: Cross multiply
    28,225.12x = 38,940.96 × 16,288.24
  4. Step 4: Simplify right side
    28,225.12x = 634,279,702.31
  5. Step 5: Solve for x
    x = 634,279,702.31/28,225.12
  6. Step 6: Final answer
    x = 22,472.17

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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.