Home / 37,913.93-52,321.71-20,918.87

Finding the Fourth Proportional to 37,913.93, 52,321.71 and 20,918.87

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Solution

The fourth proportional to 37,913.93, 52,321.71 and 20,918.87 is: 28,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,913.93 : 52,321.71 = 20,918.87 : x
  2. Step 2: Convert to fraction form
    37,913.93/52,321.71 = 20,918.87/x
  3. Step 3: Cross multiply
    37,913.93x = 52,321.71 × 20,918.87
  4. Step 4: Simplify right side
    37,913.93x = 1,094,510,788.06
  5. Step 5: Solve for x
    x = 1,094,510,788.06/37,913.93
  6. Step 6: Final answer
    x = 28,868.31

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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.