Home / 28,631.19-42,959.58-11,102.40

Finding the Fourth Proportional to 28,631.19, 42,959.58 and 11,102.40

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Solution

The fourth proportional to 28,631.19, 42,959.58 and 11,102.40 is: 16,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.19 : 42,959.58 = 11,102.40 : x
  2. Step 2: Convert to fraction form
    28,631.19/42,959.58 = 11,102.40/x
  3. Step 3: Cross multiply
    28,631.19x = 42,959.58 × 11,102.40
  4. Step 4: Simplify right side
    28,631.19x = 476,954,440.99
  5. Step 5: Solve for x
    x = 476,954,440.99/28,631.19
  6. Step 6: Final answer
    x = 16,658.56

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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.