Home / 33,110.15-45,681.50-20,542.19

Finding the Fourth Proportional to 33,110.15, 45,681.50 and 20,542.19

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Solution

The fourth proportional to 33,110.15, 45,681.50 and 20,542.19 is: 28,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,110.15 : 45,681.50 = 20,542.19 : x
  2. Step 2: Convert to fraction form
    33,110.15/45,681.50 = 20,542.19/x
  3. Step 3: Cross multiply
    33,110.15x = 45,681.50 × 20,542.19
  4. Step 4: Simplify right side
    33,110.15x = 938,397,875.43
  5. Step 5: Solve for x
    x = 938,397,875.43/33,110.15
  6. Step 6: Final answer
    x = 28,341.70

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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.