Home / 31,779.28-43,855.14-17,632.12

Finding the Fourth Proportional to 31,779.28, 43,855.14 and 17,632.12

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Solution

The fourth proportional to 31,779.28, 43,855.14 and 17,632.12 is: 24,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.28 : 43,855.14 = 17,632.12 : x
  2. Step 2: Convert to fraction form
    31,779.28/43,855.14 = 17,632.12/x
  3. Step 3: Cross multiply
    31,779.28x = 43,855.14 × 17,632.12
  4. Step 4: Simplify right side
    31,779.28x = 773,259,091.10
  5. Step 5: Solve for x
    x = 773,259,091.10/31,779.28
  6. Step 6: Final answer
    x = 24,332.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.