Home / 28,378.60-42,574.80-12,796.24

Finding the Fourth Proportional to 28,378.60, 42,574.80 and 12,796.24

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Solution

The fourth proportional to 28,378.60, 42,574.80 and 12,796.24 is: 19,197.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.60 : 42,574.80 = 12,796.24 : x
  2. Step 2: Convert to fraction form
    28,378.60/42,574.80 = 12,796.24/x
  3. Step 3: Cross multiply
    28,378.60x = 42,574.80 × 12,796.24
  4. Step 4: Simplify right side
    28,378.60x = 544,797,358.75
  5. Step 5: Solve for x
    x = 544,797,358.75/28,378.60
  6. Step 6: Final answer
    x = 19,197.47

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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.