Home / 34,720.12-52,064.61-20,686.76

Finding the Fourth Proportional to 34,720.12, 52,064.61 and 20,686.76

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Solution

The fourth proportional to 34,720.12, 52,064.61 and 20,686.76 is: 31,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,720.12 : 52,064.61 = 20,686.76 : x
  2. Step 2: Convert to fraction form
    34,720.12/52,064.61 = 20,686.76/x
  3. Step 3: Cross multiply
    34,720.12x = 52,064.61 × 20,686.76
  4. Step 4: Simplify right side
    34,720.12x = 1,077,047,898.90
  5. Step 5: Solve for x
    x = 1,077,047,898.90/34,720.12
  6. Step 6: Final answer
    x = 31,020.86

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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.