Home / 26,142.84-36,077.99-15,385.77

Finding the Fourth Proportional to 26,142.84, 36,077.99 and 15,385.77

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Solution

The fourth proportional to 26,142.84, 36,077.99 and 15,385.77 is: 21,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.84 : 36,077.99 = 15,385.77 : x
  2. Step 2: Convert to fraction form
    26,142.84/36,077.99 = 15,385.77/x
  3. Step 3: Cross multiply
    26,142.84x = 36,077.99 × 15,385.77
  4. Step 4: Simplify right side
    26,142.84x = 555,087,656.20
  5. Step 5: Solve for x
    x = 555,087,656.20/26,142.84
  6. Step 6: Final answer
    x = 21,232.88

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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.