Home / 21,382.55-32,087.59-11,528.70

Finding the Fourth Proportional to 21,382.55, 32,087.59 and 11,528.70

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Solution

The fourth proportional to 21,382.55, 32,087.59 and 11,528.70 is: 17,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.55 : 32,087.59 = 11,528.70 : x
  2. Step 2: Convert to fraction form
    21,382.55/32,087.59 = 11,528.70/x
  3. Step 3: Cross multiply
    21,382.55x = 32,087.59 × 11,528.70
  4. Step 4: Simplify right side
    21,382.55x = 369,928,114.53
  5. Step 5: Solve for x
    x = 369,928,114.53/21,382.55
  6. Step 6: Final answer
    x = 17,300.47

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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.