Home / 42,817.28-64,226.40-19,126.04

Finding the Fourth Proportional to 42,817.28, 64,226.40 and 19,126.04

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Solution

The fourth proportional to 42,817.28, 64,226.40 and 19,126.04 is: 28,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,817.28 : 64,226.40 = 19,126.04 : x
  2. Step 2: Convert to fraction form
    42,817.28/64,226.40 = 19,126.04/x
  3. Step 3: Cross multiply
    42,817.28x = 64,226.40 × 19,126.04
  4. Step 4: Simplify right side
    42,817.28x = 1,228,396,695.46
  5. Step 5: Solve for x
    x = 1,228,396,695.46/42,817.28
  6. Step 6: Final answer
    x = 28,689.27

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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.