Home / 22,239.06-30,689.91-12,807.42

Finding the Fourth Proportional to 22,239.06, 30,689.91 and 12,807.42

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Solution

The fourth proportional to 22,239.06, 30,689.91 and 12,807.42 is: 17,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.06 : 30,689.91 = 12,807.42 : x
  2. Step 2: Convert to fraction form
    22,239.06/30,689.91 = 12,807.42/x
  3. Step 3: Cross multiply
    22,239.06x = 30,689.91 × 12,807.42
  4. Step 4: Simplify right side
    22,239.06x = 393,058,567.13
  5. Step 5: Solve for x
    x = 393,058,567.13/22,239.06
  6. Step 6: Final answer
    x = 17,674.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.