Home / 42,839.28-64,274.30-19,144.85

Finding the Fourth Proportional to 42,839.28, 64,274.30 and 19,144.85

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Solution

The fourth proportional to 42,839.28, 64,274.30 and 19,144.85 is: 28,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,839.28 : 64,274.30 = 19,144.85 : x
  2. Step 2: Convert to fraction form
    42,839.28/64,274.30 = 19,144.85/x
  3. Step 3: Cross multiply
    42,839.28x = 64,274.30 × 19,144.85
  4. Step 4: Simplify right side
    42,839.28x = 1,230,521,415.26
  5. Step 5: Solve for x
    x = 1,230,521,415.26/42,839.28
  6. Step 6: Final answer
    x = 28,724.14

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1.5x scale

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.