Home / 28,518.60-42,777.92-15,377.16

Finding the Fourth Proportional to 28,518.60, 42,777.92 and 15,377.16

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Solution

The fourth proportional to 28,518.60, 42,777.92 and 15,377.16 is: 23,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.60 : 42,777.92 = 15,377.16 : x
  2. Step 2: Convert to fraction form
    28,518.60/42,777.92 = 15,377.16/x
  3. Step 3: Cross multiply
    28,518.60x = 42,777.92 × 15,377.16
  4. Step 4: Simplify right side
    28,518.60x = 657,802,920.31
  5. Step 5: Solve for x
    x = 657,802,920.31/28,518.60
  6. Step 6: Final answer
    x = 23,065.75

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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.