Home / 28,445.36-42,698.10-15,976.04

Finding the Fourth Proportional to 28,445.36, 42,698.10 and 15,976.04

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Solution

The fourth proportional to 28,445.36, 42,698.10 and 15,976.04 is: 23,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.36 : 42,698.10 = 15,976.04 : x
  2. Step 2: Convert to fraction form
    28,445.36/42,698.10 = 15,976.04/x
  3. Step 3: Cross multiply
    28,445.36x = 42,698.10 × 15,976.04
  4. Step 4: Simplify right side
    28,445.36x = 682,146,553.52
  5. Step 5: Solve for x
    x = 682,146,553.52/28,445.36
  6. Step 6: Final answer
    x = 23,980.94

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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.