Home / 31,864.08-47,656.26-28,378.56

Finding the Fourth Proportional to 31,864.08, 47,656.26 and 28,378.56

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Solution

The fourth proportional to 31,864.08, 47,656.26 and 28,378.56 is: 42,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.08 : 47,656.26 = 28,378.56 : x
  2. Step 2: Convert to fraction form
    31,864.08/47,656.26 = 28,378.56/x
  3. Step 3: Cross multiply
    31,864.08x = 47,656.26 × 28,378.56
  4. Step 4: Simplify right side
    31,864.08x = 1,352,416,033.79
  5. Step 5: Solve for x
    x = 1,352,416,033.79/31,864.08
  6. Step 6: Final answer
    x = 42,443.28

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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.