Home / 28,561.68-42,850.08-11,916.18

Finding the Fourth Proportional to 28,561.68, 42,850.08 and 11,916.18

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Solution

The fourth proportional to 28,561.68, 42,850.08 and 11,916.18 is: 17,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.68 : 42,850.08 = 11,916.18 : x
  2. Step 2: Convert to fraction form
    28,561.68/42,850.08 = 11,916.18/x
  3. Step 3: Cross multiply
    28,561.68x = 42,850.08 × 11,916.18
  4. Step 4: Simplify right side
    28,561.68x = 510,609,266.29
  5. Step 5: Solve for x
    x = 510,609,266.29/28,561.68
  6. Step 6: Final answer
    x = 17,877.42

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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.