Home / 37,485.45-51,730.11-20,489.42

Finding the Fourth Proportional to 37,485.45, 51,730.11 and 20,489.42

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Solution

The fourth proportional to 37,485.45, 51,730.11 and 20,489.42 is: 28,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.45 : 51,730.11 = 20,489.42 : x
  2. Step 2: Convert to fraction form
    37,485.45/51,730.11 = 20,489.42/x
  3. Step 3: Cross multiply
    37,485.45x = 51,730.11 × 20,489.42
  4. Step 4: Simplify right side
    37,485.45x = 1,059,920,079.76
  5. Step 5: Solve for x
    x = 1,059,920,079.76/37,485.45
  6. Step 6: Final answer
    x = 28,275.51

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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.