Home / 28,293.28-42,398.96-15,645.50

Finding the Fourth Proportional to 28,293.28, 42,398.96 and 15,645.50

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Solution

The fourth proportional to 28,293.28, 42,398.96 and 15,645.50 is: 23,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.28 : 42,398.96 = 15,645.50 : x
  2. Step 2: Convert to fraction form
    28,293.28/42,398.96 = 15,645.50/x
  3. Step 3: Cross multiply
    28,293.28x = 42,398.96 × 15,645.50
  4. Step 4: Simplify right side
    28,293.28x = 663,352,928.68
  5. Step 5: Solve for x
    x = 663,352,928.68/28,293.28
  6. Step 6: Final answer
    x = 23,445.60

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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.