Home / 28,239.02-42,357.81-7,462.70

Finding the Fourth Proportional to 28,239.02, 42,357.81 and 7,462.70

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Solution

The fourth proportional to 28,239.02, 42,357.81 and 7,462.70 is: 11,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.02 : 42,357.81 = 7,462.70 : x
  2. Step 2: Convert to fraction form
    28,239.02/42,357.81 = 7,462.70/x
  3. Step 3: Cross multiply
    28,239.02x = 42,357.81 × 7,462.70
  4. Step 4: Simplify right side
    28,239.02x = 316,103,628.69
  5. Step 5: Solve for x
    x = 316,103,628.69/28,239.02
  6. Step 6: Final answer
    x = 11,193.86

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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.