Home / 30,557.40-45,863.10-18,061.80

Finding the Fourth Proportional to 30,557.40, 45,863.10 and 18,061.80

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Solution

The fourth proportional to 30,557.40, 45,863.10 and 18,061.80 is: 27,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.40 : 45,863.10 = 18,061.80 : x
  2. Step 2: Convert to fraction form
    30,557.40/45,863.10 = 18,061.80/x
  3. Step 3: Cross multiply
    30,557.40x = 45,863.10 × 18,061.80
  4. Step 4: Simplify right side
    30,557.40x = 828,370,139.58
  5. Step 5: Solve for x
    x = 828,370,139.58/30,557.40
  6. Step 6: Final answer
    x = 27,108.66

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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.