Home / 20,434.52-30,663.63-8,587.37

Finding the Fourth Proportional to 20,434.52, 30,663.63 and 8,587.37

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Solution

The fourth proportional to 20,434.52, 30,663.63 and 8,587.37 is: 12,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.52 : 30,663.63 = 8,587.37 : x
  2. Step 2: Convert to fraction form
    20,434.52/30,663.63 = 8,587.37/x
  3. Step 3: Cross multiply
    20,434.52x = 30,663.63 × 8,587.37
  4. Step 4: Simplify right side
    20,434.52x = 263,320,013.01
  5. Step 5: Solve for x
    x = 263,320,013.01/20,434.52
  6. Step 6: Final answer
    x = 12,886.04

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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.