Home / 37,911.78-52,318.44-20,915.15

Finding the Fourth Proportional to 37,911.78, 52,318.44 and 20,915.15

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Solution

The fourth proportional to 37,911.78, 52,318.44 and 20,915.15 is: 28,863.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,911.78 : 52,318.44 = 20,915.15 : x
  2. Step 2: Convert to fraction form
    37,911.78/52,318.44 = 20,915.15/x
  3. Step 3: Cross multiply
    37,911.78x = 52,318.44 × 20,915.15
  4. Step 4: Simplify right side
    37,911.78x = 1,094,247,758.77
  5. Step 5: Solve for x
    x = 1,094,247,758.77/37,911.78
  6. Step 6: Final answer
    x = 28,863.00

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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.