Home / 37,909.20-52,312.32-20,913.68

Finding the Fourth Proportional to 37,909.20, 52,312.32 and 20,913.68

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Solution

The fourth proportional to 37,909.20, 52,312.32 and 20,913.68 is: 28,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,909.20 : 52,312.32 = 20,913.68 : x
  2. Step 2: Convert to fraction form
    37,909.20/52,312.32 = 20,913.68/x
  3. Step 3: Cross multiply
    37,909.20x = 52,312.32 × 20,913.68
  4. Step 4: Simplify right side
    37,909.20x = 1,094,043,120.54
  5. Step 5: Solve for x
    x = 1,094,043,120.54/37,909.20
  6. Step 6: Final answer
    x = 28,859.57

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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.