Home / 28,298.36-42,447.49-7,521.86

Finding the Fourth Proportional to 28,298.36, 42,447.49 and 7,521.86

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Solution

The fourth proportional to 28,298.36, 42,447.49 and 7,521.86 is: 11,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.36 : 42,447.49 = 7,521.86 : x
  2. Step 2: Convert to fraction form
    28,298.36/42,447.49 = 7,521.86/x
  3. Step 3: Cross multiply
    28,298.36x = 42,447.49 × 7,521.86
  4. Step 4: Simplify right side
    28,298.36x = 319,283,846.09
  5. Step 5: Solve for x
    x = 319,283,846.09/28,298.36
  6. Step 6: Final answer
    x = 11,282.77

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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.