Home / 39,815.21-54,970.63-24,729.71

Finding the Fourth Proportional to 39,815.21, 54,970.63 and 24,729.71

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Solution

The fourth proportional to 39,815.21, 54,970.63 and 24,729.71 is: 34,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,815.21 : 54,970.63 = 24,729.71 : x
  2. Step 2: Convert to fraction form
    39,815.21/54,970.63 = 24,729.71/x
  3. Step 3: Cross multiply
    39,815.21x = 54,970.63 × 24,729.71
  4. Step 4: Simplify right side
    39,815.21x = 1,359,407,401.74
  5. Step 5: Solve for x
    x = 1,359,407,401.74/39,815.21
  6. Step 6: Final answer
    x = 34,142.91

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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.