Home / 38,478.40-57,717.60-16,307.80

Finding the Fourth Proportional to 38,478.40, 57,717.60 and 16,307.80

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Solution

The fourth proportional to 38,478.40, 57,717.60 and 16,307.80 is: 24,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.40 : 57,717.60 = 16,307.80 : x
  2. Step 2: Convert to fraction form
    38,478.40/57,717.60 = 16,307.80/x
  3. Step 3: Cross multiply
    38,478.40x = 57,717.60 × 16,307.80
  4. Step 4: Simplify right side
    38,478.40x = 941,247,077.28
  5. Step 5: Solve for x
    x = 941,247,077.28/38,478.40
  6. Step 6: Final answer
    x = 24,461.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.