Home / 40,156.86-60,290.46-20,448.66

Finding the Fourth Proportional to 40,156.86, 60,290.46 and 20,448.66

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Solution

The fourth proportional to 40,156.86, 60,290.46 and 20,448.66 is: 30,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,156.86 : 60,290.46 = 20,448.66 : x
  2. Step 2: Convert to fraction form
    40,156.86/60,290.46 = 20,448.66/x
  3. Step 3: Cross multiply
    40,156.86x = 60,290.46 × 20,448.66
  4. Step 4: Simplify right side
    40,156.86x = 1,232,859,117.78
  5. Step 5: Solve for x
    x = 1,232,859,117.78/40,156.86
  6. Step 6: Final answer
    x = 30,701.08

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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.