Home / 23,090.43-31,864.15-13,018.78

Finding the Fourth Proportional to 23,090.43, 31,864.15 and 13,018.78

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Solution

The fourth proportional to 23,090.43, 31,864.15 and 13,018.78 is: 17,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,090.43 : 31,864.15 = 13,018.78 : x
  2. Step 2: Convert to fraction form
    23,090.43/31,864.15 = 13,018.78/x
  3. Step 3: Cross multiply
    23,090.43x = 31,864.15 × 13,018.78
  4. Step 4: Simplify right side
    23,090.43x = 414,832,246.53
  5. Step 5: Solve for x
    x = 414,832,246.53/23,090.43
  6. Step 6: Final answer
    x = 17,965.55

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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.