Home / 22,810.55-31,476.40-13,377.29

Finding the Fourth Proportional to 22,810.55, 31,476.40 and 13,377.29

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Solution

The fourth proportional to 22,810.55, 31,476.40 and 13,377.29 is: 18,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,810.55 : 31,476.40 = 13,377.29 : x
  2. Step 2: Convert to fraction form
    22,810.55/31,476.40 = 13,377.29/x
  3. Step 3: Cross multiply
    22,810.55x = 31,476.40 × 13,377.29
  4. Step 4: Simplify right side
    22,810.55x = 421,068,740.13
  5. Step 5: Solve for x
    x = 421,068,740.13/22,810.55
  6. Step 6: Final answer
    x = 18,459.39

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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.