Home / 31,720.72-47,516.44-15,030.16

Finding the Fourth Proportional to 31,720.72, 47,516.44 and 15,030.16

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Solution

The fourth proportional to 31,720.72, 47,516.44 and 15,030.16 is: 22,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.72 : 47,516.44 = 15,030.16 : x
  2. Step 2: Convert to fraction form
    31,720.72/47,516.44 = 15,030.16/x
  3. Step 3: Cross multiply
    31,720.72x = 47,516.44 × 15,030.16
  4. Step 4: Simplify right side
    31,720.72x = 714,179,695.83
  5. Step 5: Solve for x
    x = 714,179,695.83/31,720.72
  6. Step 6: Final answer
    x = 22,514.61

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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.