Home / 21,177.63-31,765.86-5,595.30

Finding the Fourth Proportional to 21,177.63, 31,765.86 and 5,595.30

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Solution

The fourth proportional to 21,177.63, 31,765.86 and 5,595.30 is: 8,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.63 : 31,765.86 = 5,595.30 : x
  2. Step 2: Convert to fraction form
    21,177.63/31,765.86 = 5,595.30/x
  3. Step 3: Cross multiply
    21,177.63x = 31,765.86 × 5,595.30
  4. Step 4: Simplify right side
    21,177.63x = 177,739,516.46
  5. Step 5: Solve for x
    x = 177,739,516.46/21,177.63
  6. Step 6: Final answer
    x = 8,392.80

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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.