Home / 28,886.40-39,861.54-16,948.80

Finding the Fourth Proportional to 28,886.40, 39,861.54 and 16,948.80

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Solution

The fourth proportional to 28,886.40, 39,861.54 and 16,948.80 is: 23,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.40 : 39,861.54 = 16,948.80 : x
  2. Step 2: Convert to fraction form
    28,886.40/39,861.54 = 16,948.80/x
  3. Step 3: Cross multiply
    28,886.40x = 39,861.54 × 16,948.80
  4. Step 4: Simplify right side
    28,886.40x = 675,605,269.15
  5. Step 5: Solve for x
    x = 675,605,269.15/28,886.40
  6. Step 6: Final answer
    x = 23,388.35

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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.