Home / 37,955.78-52,378.71-20,961.08

Finding the Fourth Proportional to 37,955.78, 52,378.71 and 20,961.08

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Solution

The fourth proportional to 37,955.78, 52,378.71 and 20,961.08 is: 28,926.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,955.78 : 52,378.71 = 20,961.08 : x
  2. Step 2: Convert to fraction form
    37,955.78/52,378.71 = 20,961.08/x
  3. Step 3: Cross multiply
    37,955.78x = 52,378.71 × 20,961.08
  4. Step 4: Simplify right side
    37,955.78x = 1,097,914,330.61
  5. Step 5: Solve for x
    x = 1,097,914,330.61/37,955.78
  6. Step 6: Final answer
    x = 28,926.14

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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.