Home / 28,678.95-43,021.08-11,150.10

Finding the Fourth Proportional to 28,678.95, 43,021.08 and 11,150.10

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Solution

The fourth proportional to 28,678.95, 43,021.08 and 11,150.10 is: 16,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.95 : 43,021.08 = 11,150.10 : x
  2. Step 2: Convert to fraction form
    28,678.95/43,021.08 = 11,150.10/x
  3. Step 3: Cross multiply
    28,678.95x = 43,021.08 × 11,150.10
  4. Step 4: Simplify right side
    28,678.95x = 479,689,344.11
  5. Step 5: Solve for x
    x = 479,689,344.11/28,678.95
  6. Step 6: Final answer
    x = 16,726.18

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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.