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Finding the Fourth Proportional to 40,556.40, 60,823.80 and 12,476.40

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Solution

The fourth proportional to 40,556.40, 60,823.80 and 12,476.40 is: 18,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,556.40 : 60,823.80 = 12,476.40 : x
  2. Step 2: Convert to fraction form
    40,556.40/60,823.80 = 12,476.40/x
  3. Step 3: Cross multiply
    40,556.40x = 60,823.80 × 12,476.40
  4. Step 4: Simplify right side
    40,556.40x = 758,862,058.32
  5. Step 5: Solve for x
    x = 758,862,058.32/40,556.40
  6. Step 6: Final answer
    x = 18,711.28

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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.