Home / 42,817.53-64,226.78-19,126.29

Finding the Fourth Proportional to 42,817.53, 64,226.78 and 19,126.29

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Solution

The fourth proportional to 42,817.53, 64,226.78 and 19,126.29 is: 28,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,817.53 : 64,226.78 = 19,126.29 : x
  2. Step 2: Convert to fraction form
    42,817.53/64,226.78 = 19,126.29/x
  3. Step 3: Cross multiply
    42,817.53x = 64,226.78 × 19,126.29
  4. Step 4: Simplify right side
    42,817.53x = 1,228,419,924.41
  5. Step 5: Solve for x
    x = 1,228,419,924.41/42,817.53
  6. Step 6: Final answer
    x = 28,689.65

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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.