Home / 31,386.80-47,087.04-15,600.32

Finding the Fourth Proportional to 31,386.80, 47,087.04 and 15,600.32

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Solution

The fourth proportional to 31,386.80, 47,087.04 and 15,600.32 is: 23,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.80 : 47,087.04 = 15,600.32 : x
  2. Step 2: Convert to fraction form
    31,386.80/47,087.04 = 15,600.32/x
  3. Step 3: Cross multiply
    31,386.80x = 47,087.04 × 15,600.32
  4. Step 4: Simplify right side
    31,386.80x = 734,572,891.85
  5. Step 5: Solve for x
    x = 734,572,891.85/31,386.80
  6. Step 6: Final answer
    x = 23,403.88

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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.