Home / 37,689.20-52,010.52-20,921.84

Finding the Fourth Proportional to 37,689.20, 52,010.52 and 20,921.84

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Solution

The fourth proportional to 37,689.20, 52,010.52 and 20,921.84 is: 28,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,689.20 : 52,010.52 = 20,921.84 : x
  2. Step 2: Convert to fraction form
    37,689.20/52,010.52 = 20,921.84/x
  3. Step 3: Cross multiply
    37,689.20x = 52,010.52 × 20,921.84
  4. Step 4: Simplify right side
    37,689.20x = 1,088,155,777.76
  5. Step 5: Solve for x
    x = 1,088,155,777.76/37,689.20
  6. Step 6: Final answer
    x = 28,871.82

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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.