Home / 39,342.11-54,290.25-22,345.47

Finding the Fourth Proportional to 39,342.11, 54,290.25 and 22,345.47

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Solution

The fourth proportional to 39,342.11, 54,290.25 and 22,345.47 is: 30,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.11 : 54,290.25 = 22,345.47 : x
  2. Step 2: Convert to fraction form
    39,342.11/54,290.25 = 22,345.47/x
  3. Step 3: Cross multiply
    39,342.11x = 54,290.25 × 22,345.47
  4. Step 4: Simplify right side
    39,342.11x = 1,213,141,152.67
  5. Step 5: Solve for x
    x = 1,213,141,152.67/39,342.11
  6. Step 6: Final answer
    x = 30,835.70

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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.