Home / 37,245.05-51,398.16-20,478.05

Finding the Fourth Proportional to 37,245.05, 51,398.16 and 20,478.05

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Solution

The fourth proportional to 37,245.05, 51,398.16 and 20,478.05 is: 28,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,245.05 : 51,398.16 = 20,478.05 : x
  2. Step 2: Convert to fraction form
    37,245.05/51,398.16 = 20,478.05/x
  3. Step 3: Cross multiply
    37,245.05x = 51,398.16 × 20,478.05
  4. Step 4: Simplify right side
    37,245.05x = 1,052,533,833.40
  5. Step 5: Solve for x
    x = 1,052,533,833.40/37,245.05
  6. Step 6: Final answer
    x = 28,259.70

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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.