Home / 25,775.09-38,651.69-9,139.31

Finding the Fourth Proportional to 25,775.09, 38,651.69 and 9,139.31

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Solution

The fourth proportional to 25,775.09, 38,651.69 and 9,139.31 is: 13,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.09 : 38,651.69 = 9,139.31 : x
  2. Step 2: Convert to fraction form
    25,775.09/38,651.69 = 9,139.31/x
  3. Step 3: Cross multiply
    25,775.09x = 38,651.69 × 9,139.31
  4. Step 4: Simplify right side
    25,775.09x = 353,249,776.93
  5. Step 5: Solve for x
    x = 353,249,776.93/25,775.09
  6. Step 6: Final answer
    x = 13,705.08

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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.