Home / 35,253.75-48,649.28-20,145.45

Finding the Fourth Proportional to 35,253.75, 48,649.28 and 20,145.45

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Solution

The fourth proportional to 35,253.75, 48,649.28 and 20,145.45 is: 27,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,253.75 : 48,649.28 = 20,145.45 : x
  2. Step 2: Convert to fraction form
    35,253.75/48,649.28 = 20,145.45/x
  3. Step 3: Cross multiply
    35,253.75x = 48,649.28 × 20,145.45
  4. Step 4: Simplify right side
    35,253.75x = 980,061,637.78
  5. Step 5: Solve for x
    x = 980,061,637.78/35,253.75
  6. Step 6: Final answer
    x = 27,800.21

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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.