Home / 25,118.76-34,664.02-15,692.78

Finding the Fourth Proportional to 25,118.76, 34,664.02 and 15,692.78

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Solution

The fourth proportional to 25,118.76, 34,664.02 and 15,692.78 is: 21,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,118.76 : 34,664.02 = 15,692.78 : x
  2. Step 2: Convert to fraction form
    25,118.76/34,664.02 = 15,692.78/x
  3. Step 3: Cross multiply
    25,118.76x = 34,664.02 × 15,692.78
  4. Step 4: Simplify right side
    25,118.76x = 543,974,839.78
  5. Step 5: Solve for x
    x = 543,974,839.78/25,118.76
  6. Step 6: Final answer
    x = 21,656.12

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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.