Home / 22,695.19-31,319.48-13,135.07

Finding the Fourth Proportional to 22,695.19, 31,319.48 and 13,135.07

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Solution

The fourth proportional to 22,695.19, 31,319.48 and 13,135.07 is: 18,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.19 : 31,319.48 = 13,135.07 : x
  2. Step 2: Convert to fraction form
    22,695.19/31,319.48 = 13,135.07/x
  3. Step 3: Cross multiply
    22,695.19x = 31,319.48 × 13,135.07
  4. Step 4: Simplify right side
    22,695.19x = 411,383,673.30
  5. Step 5: Solve for x
    x = 411,383,673.30/22,695.19
  6. Step 6: Final answer
    x = 18,126.47

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Double scale
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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.