Home / 35,144.28-48,497.94-20,988.72

Finding the Fourth Proportional to 35,144.28, 48,497.94 and 20,988.72

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Solution

The fourth proportional to 35,144.28, 48,497.94 and 20,988.72 is: 28,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,144.28 : 48,497.94 = 20,988.72 : x
  2. Step 2: Convert to fraction form
    35,144.28/48,497.94 = 20,988.72/x
  3. Step 3: Cross multiply
    35,144.28x = 48,497.94 × 20,988.72
  4. Step 4: Simplify right side
    35,144.28x = 1,017,909,683.24
  5. Step 5: Solve for x
    x = 1,017,909,683.24/35,144.28
  6. Step 6: Final answer
    x = 28,963.74

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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.