Home / 28,236.09-42,345.50-9,511.11

Finding the Fourth Proportional to 28,236.09, 42,345.50 and 9,511.11

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Solution

The fourth proportional to 28,236.09, 42,345.50 and 9,511.11 is: 14,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.09 : 42,345.50 = 9,511.11 : x
  2. Step 2: Convert to fraction form
    28,236.09/42,345.50 = 9,511.11/x
  3. Step 3: Cross multiply
    28,236.09x = 42,345.50 × 9,511.11
  4. Step 4: Simplify right side
    28,236.09x = 402,752,714.45
  5. Step 5: Solve for x
    x = 402,752,714.45/28,236.09
  6. Step 6: Final answer
    x = 14,263.75

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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.