Home / 31,271.40-43,154.40-17,124.12

Finding the Fourth Proportional to 31,271.40, 43,154.40 and 17,124.12

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Solution

The fourth proportional to 31,271.40, 43,154.40 and 17,124.12 is: 23,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.40 : 43,154.40 = 17,124.12 : x
  2. Step 2: Convert to fraction form
    31,271.40/43,154.40 = 17,124.12/x
  3. Step 3: Cross multiply
    31,271.40x = 43,154.40 × 17,124.12
  4. Step 4: Simplify right side
    31,271.40x = 738,981,124.13
  5. Step 5: Solve for x
    x = 738,981,124.13/31,271.40
  6. Step 6: Final answer
    x = 23,631.21

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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.