Home / 31,743.90-47,551.23-20,616.84

Finding the Fourth Proportional to 31,743.90, 47,551.23 and 20,616.84

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Solution

The fourth proportional to 31,743.90, 47,551.23 and 20,616.84 is: 30,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,743.90 : 47,551.23 = 20,616.84 : x
  2. Step 2: Convert to fraction form
    31,743.90/47,551.23 = 20,616.84/x
  3. Step 3: Cross multiply
    31,743.90x = 47,551.23 × 20,616.84
  4. Step 4: Simplify right side
    31,743.90x = 980,356,100.71
  5. Step 5: Solve for x
    x = 980,356,100.71/31,743.90
  6. Step 6: Final answer
    x = 30,883.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.