Home / 28,543.08-42,826.93-11,906.39

Finding the Fourth Proportional to 28,543.08, 42,826.93 and 11,906.39

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Solution

The fourth proportional to 28,543.08, 42,826.93 and 11,906.39 is: 17,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.08 : 42,826.93 = 11,906.39 : x
  2. Step 2: Convert to fraction form
    28,543.08/42,826.93 = 11,906.39/x
  3. Step 3: Cross multiply
    28,543.08x = 42,826.93 × 11,906.39
  4. Step 4: Simplify right side
    28,543.08x = 509,914,208.38
  5. Step 5: Solve for x
    x = 509,914,208.38/28,543.08
  6. Step 6: Final answer
    x = 17,864.72

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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.