Home / 25,655.80-38,487.75-10,864.81

Finding the Fourth Proportional to 25,655.80, 38,487.75 and 10,864.81

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Solution

The fourth proportional to 25,655.80, 38,487.75 and 10,864.81 is: 16,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.80 : 38,487.75 = 10,864.81 : x
  2. Step 2: Convert to fraction form
    25,655.80/38,487.75 = 10,864.81/x
  3. Step 3: Cross multiply
    25,655.80x = 38,487.75 × 10,864.81
  4. Step 4: Simplify right side
    25,655.80x = 418,162,091.08
  5. Step 5: Solve for x
    x = 418,162,091.08/25,655.80
  6. Step 6: Final answer
    x = 16,298.93

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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.