Home / 22,134.13-30,541.52-13,181.40

Finding the Fourth Proportional to 22,134.13, 30,541.52 and 13,181.40

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Solution

The fourth proportional to 22,134.13, 30,541.52 and 13,181.40 is: 18,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,134.13 : 30,541.52 = 13,181.40 : x
  2. Step 2: Convert to fraction form
    22,134.13/30,541.52 = 13,181.40/x
  3. Step 3: Cross multiply
    22,134.13x = 30,541.52 × 13,181.40
  4. Step 4: Simplify right side
    22,134.13x = 402,580,024.68
  5. Step 5: Solve for x
    x = 402,580,024.68/22,134.13
  6. Step 6: Final answer
    x = 18,188.20

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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.