Home / 22,646.72-31,256.19-13,215.26

Finding the Fourth Proportional to 22,646.72, 31,256.19 and 13,215.26

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Solution

The fourth proportional to 22,646.72, 31,256.19 and 13,215.26 is: 18,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,646.72 : 31,256.19 = 13,215.26 : x
  2. Step 2: Convert to fraction form
    22,646.72/31,256.19 = 13,215.26/x
  3. Step 3: Cross multiply
    22,646.72x = 31,256.19 × 13,215.26
  4. Step 4: Simplify right side
    22,646.72x = 413,058,521.18
  5. Step 5: Solve for x
    x = 413,058,521.18/22,646.72
  6. Step 6: Final answer
    x = 18,239.22

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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.