Home / 19,926.28-29,891.17-5,135.18

Finding the Fourth Proportional to 19,926.28, 29,891.17 and 5,135.18

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Solution

The fourth proportional to 19,926.28, 29,891.17 and 5,135.18 is: 7,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,926.28 : 29,891.17 = 5,135.18 : x
  2. Step 2: Convert to fraction form
    19,926.28/29,891.17 = 5,135.18/x
  3. Step 3: Cross multiply
    19,926.28x = 29,891.17 × 5,135.18
  4. Step 4: Simplify right side
    19,926.28x = 153,496,376.07
  5. Step 5: Solve for x
    x = 153,496,376.07/19,926.28
  6. Step 6: Final answer
    x = 7,703.21

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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.