Home / 31,518.77-47,265.17-13,976.30

Finding the Fourth Proportional to 31,518.77, 47,265.17 and 13,976.30

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Solution

The fourth proportional to 31,518.77, 47,265.17 and 13,976.30 is: 20,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.77 : 47,265.17 = 13,976.30 : x
  2. Step 2: Convert to fraction form
    31,518.77/47,265.17 = 13,976.30/x
  3. Step 3: Cross multiply
    31,518.77x = 47,265.17 × 13,976.30
  4. Step 4: Simplify right side
    31,518.77x = 660,592,056.50
  5. Step 5: Solve for x
    x = 660,592,056.50/31,518.77
  6. Step 6: Final answer
    x = 20,958.69

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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.