Home / 39,155.50-54,034.65-22,388.86

Finding the Fourth Proportional to 39,155.50, 54,034.65 and 22,388.86

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Solution

The fourth proportional to 39,155.50, 54,034.65 and 22,388.86 is: 30,896.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.50 : 54,034.65 = 22,388.86 : x
  2. Step 2: Convert to fraction form
    39,155.50/54,034.65 = 22,388.86/x
  3. Step 3: Cross multiply
    39,155.50x = 54,034.65 × 22,388.86
  4. Step 4: Simplify right side
    39,155.50x = 1,209,774,214.00
  5. Step 5: Solve for x
    x = 1,209,774,214.00/39,155.50
  6. Step 6: Final answer
    x = 30,896.66

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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.