Home / 27,885.60-38,480.40-25,656.48

Finding the Fourth Proportional to 27,885.60, 38,480.40 and 25,656.48

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Solution

The fourth proportional to 27,885.60, 38,480.40 and 25,656.48 is: 35,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.60 : 38,480.40 = 25,656.48 : x
  2. Step 2: Convert to fraction form
    27,885.60/38,480.40 = 25,656.48/x
  3. Step 3: Cross multiply
    27,885.60x = 38,480.40 × 25,656.48
  4. Step 4: Simplify right side
    27,885.60x = 987,271,612.99
  5. Step 5: Solve for x
    x = 987,271,612.99/27,885.60
  6. Step 6: Final answer
    x = 35,404.35

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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.