Home / 20,703.61-31,060.28-5,912.74

Finding the Fourth Proportional to 20,703.61, 31,060.28 and 5,912.74

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Solution

The fourth proportional to 20,703.61, 31,060.28 and 5,912.74 is: 8,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.61 : 31,060.28 = 5,912.74 : x
  2. Step 2: Convert to fraction form
    20,703.61/31,060.28 = 5,912.74/x
  3. Step 3: Cross multiply
    20,703.61x = 31,060.28 × 5,912.74
  4. Step 4: Simplify right side
    20,703.61x = 183,651,359.97
  5. Step 5: Solve for x
    x = 183,651,359.97/20,703.61
  6. Step 6: Final answer
    x = 8,870.50

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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.