Home / 28,331.40-42,498.70-8,610.60

Finding the Fourth Proportional to 28,331.40, 42,498.70 and 8,610.60

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Solution

The fourth proportional to 28,331.40, 42,498.70 and 8,610.60 is: 12,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.40 : 42,498.70 = 8,610.60 : x
  2. Step 2: Convert to fraction form
    28,331.40/42,498.70 = 8,610.60/x
  3. Step 3: Cross multiply
    28,331.40x = 42,498.70 × 8,610.60
  4. Step 4: Simplify right side
    28,331.40x = 365,939,306.22
  5. Step 5: Solve for x
    x = 365,939,306.22/28,331.40
  6. Step 6: Final answer
    x = 12,916.39

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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.