Home / 20,707.07-31,060.23-5,124.69

Finding the Fourth Proportional to 20,707.07, 31,060.23 and 5,124.69

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Solution

The fourth proportional to 20,707.07, 31,060.23 and 5,124.69 is: 7,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.07 : 31,060.23 = 5,124.69 : x
  2. Step 2: Convert to fraction form
    20,707.07/31,060.23 = 5,124.69/x
  3. Step 3: Cross multiply
    20,707.07x = 31,060.23 × 5,124.69
  4. Step 4: Simplify right side
    20,707.07x = 159,174,050.08
  5. Step 5: Solve for x
    x = 159,174,050.08/20,707.07
  6. Step 6: Final answer
    x = 7,686.94

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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.