Home / 37,187.75-51,319.10-20,421.83

Finding the Fourth Proportional to 37,187.75, 51,319.10 and 20,421.83

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Solution

The fourth proportional to 37,187.75, 51,319.10 and 20,421.83 is: 28,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,187.75 : 51,319.10 = 20,421.83 : x
  2. Step 2: Convert to fraction form
    37,187.75/51,319.10 = 20,421.83/x
  3. Step 3: Cross multiply
    37,187.75x = 51,319.10 × 20,421.83
  4. Step 4: Simplify right side
    37,187.75x = 1,048,029,935.95
  5. Step 5: Solve for x
    x = 1,048,029,935.95/37,187.75
  6. Step 6: Final answer
    x = 28,182.13

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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.