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Finding the Fourth Proportional to 39,392.60, 54,359.62 and 22,394.50

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Solution

The fourth proportional to 39,392.60, 54,359.62 and 22,394.50 is: 30,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.60 : 54,359.62 = 22,394.50 : x
  2. Step 2: Convert to fraction form
    39,392.60/54,359.62 = 22,394.50/x
  3. Step 3: Cross multiply
    39,392.60x = 54,359.62 × 22,394.50
  4. Step 4: Simplify right side
    39,392.60x = 1,217,356,510.09
  5. Step 5: Solve for x
    x = 1,217,356,510.09/39,392.60
  6. Step 6: Final answer
    x = 30,903.18

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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.