Home / 19,007.31-28,489.08-10,223.79

Finding the Fourth Proportional to 19,007.31, 28,489.08 and 10,223.79

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Solution

The fourth proportional to 19,007.31, 28,489.08 and 10,223.79 is: 15,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.31 : 28,489.08 = 10,223.79 : x
  2. Step 2: Convert to fraction form
    19,007.31/28,489.08 = 10,223.79/x
  3. Step 3: Cross multiply
    19,007.31x = 28,489.08 × 10,223.79
  4. Step 4: Simplify right side
    19,007.31x = 291,266,371.21
  5. Step 5: Solve for x
    x = 291,266,371.21/19,007.31
  6. Step 6: Final answer
    x = 15,323.91

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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.