Home / 20,277.72-30,427.02-15,345.72

Finding the Fourth Proportional to 20,277.72, 30,427.02 and 15,345.72

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Solution

The fourth proportional to 20,277.72, 30,427.02 and 15,345.72 is: 23,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.72 : 30,427.02 = 15,345.72 : x
  2. Step 2: Convert to fraction form
    20,277.72/30,427.02 = 15,345.72/x
  3. Step 3: Cross multiply
    20,277.72x = 30,427.02 × 15,345.72
  4. Step 4: Simplify right side
    20,277.72x = 466,924,529.35
  5. Step 5: Solve for x
    x = 466,924,529.35/20,277.72
  6. Step 6: Final answer
    x = 23,026.48

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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.