Home / 42,677.74-64,049.28-19,320.58

Finding the Fourth Proportional to 42,677.74, 64,049.28 and 19,320.58

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Solution

The fourth proportional to 42,677.74, 64,049.28 and 19,320.58 is: 28,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,677.74 : 64,049.28 = 19,320.58 : x
  2. Step 2: Convert to fraction form
    42,677.74/64,049.28 = 19,320.58/x
  3. Step 3: Cross multiply
    42,677.74x = 64,049.28 × 19,320.58
  4. Step 4: Simplify right side
    42,677.74x = 1,237,469,238.18
  5. Step 5: Solve for x
    x = 1,237,469,238.18/42,677.74
  6. Step 6: Final answer
    x = 28,995.66

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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.