Home / 25,666.38-38,489.85-10,075.50

Finding the Fourth Proportional to 25,666.38, 38,489.85 and 10,075.50

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Solution

The fourth proportional to 25,666.38, 38,489.85 and 10,075.50 is: 15,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,666.38 : 38,489.85 = 10,075.50 : x
  2. Step 2: Convert to fraction form
    25,666.38/38,489.85 = 10,075.50/x
  3. Step 3: Cross multiply
    25,666.38x = 38,489.85 × 10,075.50
  4. Step 4: Simplify right side
    25,666.38x = 387,804,483.68
  5. Step 5: Solve for x
    x = 387,804,483.68/25,666.38
  6. Step 6: Final answer
    x = 15,109.43

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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.