Home / 39,461.28-54,453.72-21,552.48

Finding the Fourth Proportional to 39,461.28, 54,453.72 and 21,552.48

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Solution

The fourth proportional to 39,461.28, 54,453.72 and 21,552.48 is: 29,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.28 : 54,453.72 = 21,552.48 : x
  2. Step 2: Convert to fraction form
    39,461.28/54,453.72 = 21,552.48/x
  3. Step 3: Cross multiply
    39,461.28x = 54,453.72 × 21,552.48
  4. Step 4: Simplify right side
    39,461.28x = 1,173,612,670.81
  5. Step 5: Solve for x
    x = 1,173,612,670.81/39,461.28
  6. Step 6: Final answer
    x = 29,740.87

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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.