Home / 20,750.61-31,116.73-5,956.10

Finding the Fourth Proportional to 20,750.61, 31,116.73 and 5,956.10

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Solution

The fourth proportional to 20,750.61, 31,116.73 and 5,956.10 is: 8,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.61 : 31,116.73 = 5,956.10 : x
  2. Step 2: Convert to fraction form
    20,750.61/31,116.73 = 5,956.10/x
  3. Step 3: Cross multiply
    20,750.61x = 31,116.73 × 5,956.10
  4. Step 4: Simplify right side
    20,750.61x = 185,334,199.97
  5. Step 5: Solve for x
    x = 185,334,199.97/20,750.61
  6. Step 6: Final answer
    x = 8,931.51

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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.