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Finding the Fourth Proportional to 35,331, 48,759.48 and 20,228.40

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Solution

The fourth proportional to 35,331, 48,759.48 and 20,228.40 is: 27,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,331 : 48,759.48 = 20,228.40 : x
  2. Step 2: Convert to fraction form
    35,331/48,759.48 = 20,228.40/x
  3. Step 3: Cross multiply
    35,331x = 48,759.48 × 20,228.40
  4. Step 4: Simplify right side
    35,331x = 986,326,265.23
  5. Step 5: Solve for x
    x = 986,326,265.23/35,331
  6. Step 6: Final answer
    x = 27,916.74

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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.