Home / 22,342.17-30,842.70-12,908.91

Finding the Fourth Proportional to 22,342.17, 30,842.70 and 12,908.91

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Solution

The fourth proportional to 22,342.17, 30,842.70 and 12,908.91 is: 17,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,342.17 : 30,842.70 = 12,908.91 : x
  2. Step 2: Convert to fraction form
    22,342.17/30,842.70 = 12,908.91/x
  3. Step 3: Cross multiply
    22,342.17x = 30,842.70 × 12,908.91
  4. Step 4: Simplify right side
    22,342.17x = 398,145,638.46
  5. Step 5: Solve for x
    x = 398,145,638.46/22,342.17
  6. Step 6: Final answer
    x = 17,820.37

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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.