Home / 35,130.76-48,476.36-20,791.21

Finding the Fourth Proportional to 35,130.76, 48,476.36 and 20,791.21

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Solution

The fourth proportional to 35,130.76, 48,476.36 and 20,791.21 is: 28,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,130.76 : 48,476.36 = 20,791.21 : x
  2. Step 2: Convert to fraction form
    35,130.76/48,476.36 = 20,791.21/x
  3. Step 3: Cross multiply
    35,130.76x = 48,476.36 × 20,791.21
  4. Step 4: Simplify right side
    35,130.76x = 1,007,882,180.80
  5. Step 5: Solve for x
    x = 1,007,882,180.80/35,130.76
  6. Step 6: Final answer
    x = 28,689.45

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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.