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Finding the Fourth Proportional to 27,333.60, 40,903.20 and 18,974.40

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Solution

The fourth proportional to 27,333.60, 40,903.20 and 18,974.40 is: 28,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,333.60 : 40,903.20 = 18,974.40 : x
  2. Step 2: Convert to fraction form
    27,333.60/40,903.20 = 18,974.40/x
  3. Step 3: Cross multiply
    27,333.60x = 40,903.20 × 18,974.40
  4. Step 4: Simplify right side
    27,333.60x = 776,113,678.08
  5. Step 5: Solve for x
    x = 776,113,678.08/27,333.60
  6. Step 6: Final answer
    x = 28,394.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.