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Finding the Fourth Proportional to 39,393.59, 54,364.59 and 22,400.69

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Solution

The fourth proportional to 39,393.59, 54,364.59 and 22,400.69 is: 30,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.59 : 54,364.59 = 22,400.69 : x
  2. Step 2: Convert to fraction form
    39,393.59/54,364.59 = 22,400.69/x
  3. Step 3: Cross multiply
    39,393.59x = 54,364.59 × 22,400.69
  4. Step 4: Simplify right side
    39,393.59x = 1,217,804,055.74
  5. Step 5: Solve for x
    x = 1,217,804,055.74/39,393.59
  6. Step 6: Final answer
    x = 30,913.77

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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.