Home / 25,127.86-34,692.67-15,577.95

Finding the Fourth Proportional to 25,127.86, 34,692.67 and 15,577.95

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Solution

The fourth proportional to 25,127.86, 34,692.67 and 15,577.95 is: 21,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127.86 : 34,692.67 = 15,577.95 : x
  2. Step 2: Convert to fraction form
    25,127.86/34,692.67 = 15,577.95/x
  3. Step 3: Cross multiply
    25,127.86x = 34,692.67 × 15,577.95
  4. Step 4: Simplify right side
    25,127.86x = 540,440,678.63
  5. Step 5: Solve for x
    x = 540,440,678.63/25,127.86
  6. Step 6: Final answer
    x = 21,507.63

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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.