Home / 31,526.70-43,510.92-18,102.78

Finding the Fourth Proportional to 31,526.70, 43,510.92 and 18,102.78

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Solution

The fourth proportional to 31,526.70, 43,510.92 and 18,102.78 is: 24,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.70 : 43,510.92 = 18,102.78 : x
  2. Step 2: Convert to fraction form
    31,526.70/43,510.92 = 18,102.78/x
  3. Step 3: Cross multiply
    31,526.70x = 43,510.92 × 18,102.78
  4. Step 4: Simplify right side
    31,526.70x = 787,668,612.36
  5. Step 5: Solve for x
    x = 787,668,612.36/31,526.70
  6. Step 6: Final answer
    x = 24,984.18

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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.