Home / 30,648.13-45,972.19-9,871.63

Finding the Fourth Proportional to 30,648.13, 45,972.19 and 9,871.63

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Solution

The fourth proportional to 30,648.13, 45,972.19 and 9,871.63 is: 14,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.13 : 45,972.19 = 9,871.63 : x
  2. Step 2: Convert to fraction form
    30,648.13/45,972.19 = 9,871.63/x
  3. Step 3: Cross multiply
    30,648.13x = 45,972.19 × 9,871.63
  4. Step 4: Simplify right side
    30,648.13x = 453,820,449.97
  5. Step 5: Solve for x
    x = 453,820,449.97/30,648.13
  6. Step 6: Final answer
    x = 14,807.44

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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.