Home / 19,612.20-29,369.70-15,724.20

Finding the Fourth Proportional to 19,612.20, 29,369.70 and 15,724.20

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Solution

The fourth proportional to 19,612.20, 29,369.70 and 15,724.20 is: 23,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.20 : 29,369.70 = 15,724.20 : x
  2. Step 2: Convert to fraction form
    19,612.20/29,369.70 = 15,724.20/x
  3. Step 3: Cross multiply
    19,612.20x = 29,369.70 × 15,724.20
  4. Step 4: Simplify right side
    19,612.20x = 461,815,036.74
  5. Step 5: Solve for x
    x = 461,815,036.74/19,612.20
  6. Step 6: Final answer
    x = 23,547.33

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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.