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Finding the Fourth Proportional to 27,341.60, 40,915.20 and 18,982.40

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Solution

The fourth proportional to 27,341.60, 40,915.20 and 18,982.40 is: 28,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,341.60 : 40,915.20 = 18,982.40 : x
  2. Step 2: Convert to fraction form
    27,341.60/40,915.20 = 18,982.40/x
  3. Step 3: Cross multiply
    27,341.60x = 40,915.20 × 18,982.40
  4. Step 4: Simplify right side
    27,341.60x = 776,668,692.48
  5. Step 5: Solve for x
    x = 776,668,692.48/27,341.60
  6. Step 6: Final answer
    x = 28,406.12

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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.