Home / 39,244.32-54,156.40-21,339.18

Finding the Fourth Proportional to 39,244.32, 54,156.40 and 21,339.18

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Solution

The fourth proportional to 39,244.32, 54,156.40 and 21,339.18 is: 29,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,244.32 : 54,156.40 = 21,339.18 : x
  2. Step 2: Convert to fraction form
    39,244.32/54,156.40 = 21,339.18/x
  3. Step 3: Cross multiply
    39,244.32x = 54,156.40 × 21,339.18
  4. Step 4: Simplify right side
    39,244.32x = 1,155,653,114.40
  5. Step 5: Solve for x
    x = 1,155,653,114.40/39,244.32
  6. Step 6: Final answer
    x = 29,447.65

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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.