Home / 22,810.80-31,478.88-13,855.92

Finding the Fourth Proportional to 22,810.80, 31,478.88 and 13,855.92

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Solution

The fourth proportional to 22,810.80, 31,478.88 and 13,855.92 is: 19,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,810.80 : 31,478.88 = 13,855.92 : x
  2. Step 2: Convert to fraction form
    22,810.80/31,478.88 = 13,855.92/x
  3. Step 3: Cross multiply
    22,810.80x = 31,478.88 × 13,855.92
  4. Step 4: Simplify right side
    22,810.80x = 436,168,842.97
  5. Step 5: Solve for x
    x = 436,168,842.97/22,810.80
  6. Step 6: Final answer
    x = 19,121.16

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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.