Home / 47,019.43-70,538.28-13,739.65

Finding the Fourth Proportional to 47,019.43, 70,538.28 and 13,739.65

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Solution

The fourth proportional to 47,019.43, 70,538.28 and 13,739.65 is: 20,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,019.43 : 70,538.28 = 13,739.65 : x
  2. Step 2: Convert to fraction form
    47,019.43/70,538.28 = 13,739.65/x
  3. Step 3: Cross multiply
    47,019.43x = 70,538.28 × 13,739.65
  4. Step 4: Simplify right side
    47,019.43x = 969,171,278.80
  5. Step 5: Solve for x
    x = 969,171,278.80/47,019.43
  6. Step 6: Final answer
    x = 20,612.14

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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.