Home / 28,619.60-42,929.40-27,015.80

Finding the Fourth Proportional to 28,619.60, 42,929.40 and 27,015.80

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Solution

The fourth proportional to 28,619.60, 42,929.40 and 27,015.80 is: 40,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.60 : 42,929.40 = 27,015.80 : x
  2. Step 2: Convert to fraction form
    28,619.60/42,929.40 = 27,015.80/x
  3. Step 3: Cross multiply
    28,619.60x = 42,929.40 × 27,015.80
  4. Step 4: Simplify right side
    28,619.60x = 1,159,772,084.52
  5. Step 5: Solve for x
    x = 1,159,772,084.52/28,619.60
  6. Step 6: Final answer
    x = 40,523.70

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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.