Home / 22,510.32-31,060.44-13,555.68

Finding the Fourth Proportional to 22,510.32, 31,060.44 and 13,555.68

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Solution

The fourth proportional to 22,510.32, 31,060.44 and 13,555.68 is: 18,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,510.32 : 31,060.44 = 13,555.68 : x
  2. Step 2: Convert to fraction form
    22,510.32/31,060.44 = 13,555.68/x
  3. Step 3: Cross multiply
    22,510.32x = 31,060.44 × 13,555.68
  4. Step 4: Simplify right side
    22,510.32x = 421,045,385.30
  5. Step 5: Solve for x
    x = 421,045,385.30/22,510.32
  6. Step 6: Final answer
    x = 18,704.55

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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.