Home / 37,913.18-52,320.68-20,918.12

Finding the Fourth Proportional to 37,913.18, 52,320.68 and 20,918.12

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Solution

The fourth proportional to 37,913.18, 52,320.68 and 20,918.12 is: 28,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,913.18 : 52,320.68 = 20,918.12 : x
  2. Step 2: Convert to fraction form
    37,913.18/52,320.68 = 20,918.12/x
  3. Step 3: Cross multiply
    37,913.18x = 52,320.68 × 20,918.12
  4. Step 4: Simplify right side
    37,913.18x = 1,094,449,896.53
  5. Step 5: Solve for x
    x = 1,094,449,896.53/37,913.18
  6. Step 6: Final answer
    x = 28,867.27

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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.