Home / 30,642.04-45,963.18-20,251.48

Finding the Fourth Proportional to 30,642.04, 45,963.18 and 20,251.48

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Solution

The fourth proportional to 30,642.04, 45,963.18 and 20,251.48 is: 30,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.04 : 45,963.18 = 20,251.48 : x
  2. Step 2: Convert to fraction form
    30,642.04/45,963.18 = 20,251.48/x
  3. Step 3: Cross multiply
    30,642.04x = 45,963.18 × 20,251.48
  4. Step 4: Simplify right side
    30,642.04x = 930,822,420.51
  5. Step 5: Solve for x
    x = 930,822,420.51/30,642.04
  6. Step 6: Final answer
    x = 30,377.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.