Home / 21,060.67-29,063.49-11,500.53

Finding the Fourth Proportional to 21,060.67, 29,063.49 and 11,500.53

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Solution

The fourth proportional to 21,060.67, 29,063.49 and 11,500.53 is: 15,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.67 : 29,063.49 = 11,500.53 : x
  2. Step 2: Convert to fraction form
    21,060.67/29,063.49 = 11,500.53/x
  3. Step 3: Cross multiply
    21,060.67x = 29,063.49 × 11,500.53
  4. Step 4: Simplify right side
    21,060.67x = 334,245,538.65
  5. Step 5: Solve for x
    x = 334,245,538.65/21,060.67
  6. Step 6: Final answer
    x = 15,870.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.