Home / 28,489.65-42,746.98-15,159.50

Finding the Fourth Proportional to 28,489.65, 42,746.98 and 15,159.50

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Solution

The fourth proportional to 28,489.65, 42,746.98 and 15,159.50 is: 22,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.65 : 42,746.98 = 15,159.50 : x
  2. Step 2: Convert to fraction form
    28,489.65/42,746.98 = 15,159.50/x
  3. Step 3: Cross multiply
    28,489.65x = 42,746.98 × 15,159.50
  4. Step 4: Simplify right side
    28,489.65x = 648,022,843.31
  5. Step 5: Solve for x
    x = 648,022,843.31/28,489.65
  6. Step 6: Final answer
    x = 22,745.90

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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.