Home / 31,140.60-46,727.10-13,612.20

Finding the Fourth Proportional to 31,140.60, 46,727.10 and 13,612.20

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Solution

The fourth proportional to 31,140.60, 46,727.10 and 13,612.20 is: 20,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.60 : 46,727.10 = 13,612.20 : x
  2. Step 2: Convert to fraction form
    31,140.60/46,727.10 = 13,612.20/x
  3. Step 3: Cross multiply
    31,140.60x = 46,727.10 × 13,612.20
  4. Step 4: Simplify right side
    31,140.60x = 636,058,630.62
  5. Step 5: Solve for x
    x = 636,058,630.62/31,140.60
  6. Step 6: Final answer
    x = 20,425.38

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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.