Home / 18,829.16-28,244.47-5,681.53

Finding the Fourth Proportional to 18,829.16, 28,244.47 and 5,681.53

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Solution

The fourth proportional to 18,829.16, 28,244.47 and 5,681.53 is: 8,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.16 : 28,244.47 = 5,681.53 : x
  2. Step 2: Convert to fraction form
    18,829.16/28,244.47 = 5,681.53/x
  3. Step 3: Cross multiply
    18,829.16x = 28,244.47 × 5,681.53
  4. Step 4: Simplify right side
    18,829.16x = 160,471,718.82
  5. Step 5: Solve for x
    x = 160,471,718.82/18,829.16
  6. Step 6: Final answer
    x = 8,522.51

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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.