Home / 25,979.52-38,973.38-8,445.25

Finding the Fourth Proportional to 25,979.52, 38,973.38 and 8,445.25

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Solution

The fourth proportional to 25,979.52, 38,973.38 and 8,445.25 is: 12,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.52 : 38,973.38 = 8,445.25 : x
  2. Step 2: Convert to fraction form
    25,979.52/38,973.38 = 8,445.25/x
  3. Step 3: Cross multiply
    25,979.52x = 38,973.38 × 8,445.25
  4. Step 4: Simplify right side
    25,979.52x = 329,139,937.45
  5. Step 5: Solve for x
    x = 329,139,937.45/25,979.52
  6. Step 6: Final answer
    x = 12,669.21

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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.