Home / 19,905.74-29,864.07-15,759.55

Finding the Fourth Proportional to 19,905.74, 29,864.07 and 15,759.55

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Solution

The fourth proportional to 19,905.74, 29,864.07 and 15,759.55 is: 23,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.74 : 29,864.07 = 15,759.55 : x
  2. Step 2: Convert to fraction form
    19,905.74/29,864.07 = 15,759.55/x
  3. Step 3: Cross multiply
    19,905.74x = 29,864.07 × 15,759.55
  4. Step 4: Simplify right side
    19,905.74x = 470,644,304.37
  5. Step 5: Solve for x
    x = 470,644,304.37/19,905.74
  6. Step 6: Final answer
    x = 23,643.65

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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.