Home / 35,139.90-48,494.21-20,032.28

Finding the Fourth Proportional to 35,139.90, 48,494.21 and 20,032.28

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Solution

The fourth proportional to 35,139.90, 48,494.21 and 20,032.28 is: 27,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.90 : 48,494.21 = 20,032.28 : x
  2. Step 2: Convert to fraction form
    35,139.90/48,494.21 = 20,032.28/x
  3. Step 3: Cross multiply
    35,139.90x = 48,494.21 × 20,032.28
  4. Step 4: Simplify right side
    35,139.90x = 971,449,593.10
  5. Step 5: Solve for x
    x = 971,449,593.10/35,139.90
  6. Step 6: Final answer
    x = 27,645.20

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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.