Home / 39,347.30-54,299.28-21,442.26

Finding the Fourth Proportional to 39,347.30, 54,299.28 and 21,442.26

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Solution

The fourth proportional to 39,347.30, 54,299.28 and 21,442.26 is: 29,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,347.30 : 54,299.28 = 21,442.26 : x
  2. Step 2: Convert to fraction form
    39,347.30/54,299.28 = 21,442.26/x
  3. Step 3: Cross multiply
    39,347.30x = 54,299.28 × 21,442.26
  4. Step 4: Simplify right side
    39,347.30x = 1,164,299,279.57
  5. Step 5: Solve for x
    x = 1,164,299,279.57/39,347.30
  6. Step 6: Final answer
    x = 29,590.32

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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.