Home / 21,749.46-32,616.51-9,430.74

Finding the Fourth Proportional to 21,749.46, 32,616.51 and 9,430.74

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Solution

The fourth proportional to 21,749.46, 32,616.51 and 9,430.74 is: 14,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.46 : 32,616.51 = 9,430.74 : x
  2. Step 2: Convert to fraction form
    21,749.46/32,616.51 = 9,430.74/x
  3. Step 3: Cross multiply
    21,749.46x = 32,616.51 × 9,430.74
  4. Step 4: Simplify right side
    21,749.46x = 307,597,825.52
  5. Step 5: Solve for x
    x = 307,597,825.52/21,749.46
  6. Step 6: Final answer
    x = 14,142.78

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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.