Home / 37,290.66-51,457.05-20,520.42

Finding the Fourth Proportional to 37,290.66, 51,457.05 and 20,520.42

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Solution

The fourth proportional to 37,290.66, 51,457.05 and 20,520.42 is: 28,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,290.66 : 51,457.05 = 20,520.42 : x
  2. Step 2: Convert to fraction form
    37,290.66/51,457.05 = 20,520.42/x
  3. Step 3: Cross multiply
    37,290.66x = 51,457.05 × 20,520.42
  4. Step 4: Simplify right side
    37,290.66x = 1,055,920,277.96
  5. Step 5: Solve for x
    x = 1,055,920,277.96/37,290.66
  6. Step 6: Final answer
    x = 28,315.95

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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.