Home / 39,478.64-54,464.10-25,862.80

Finding the Fourth Proportional to 39,478.64, 54,464.10 and 25,862.80

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Solution

The fourth proportional to 39,478.64, 54,464.10 and 25,862.80 is: 35,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.64 : 54,464.10 = 25,862.80 : x
  2. Step 2: Convert to fraction form
    39,478.64/54,464.10 = 25,862.80/x
  3. Step 3: Cross multiply
    39,478.64x = 54,464.10 × 25,862.80
  4. Step 4: Simplify right side
    39,478.64x = 1,408,594,125.48
  5. Step 5: Solve for x
    x = 1,408,594,125.48/39,478.64
  6. Step 6: Final answer
    x = 35,679.91

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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.