Home / 28,497.06-42,756.96-11,868.56

Finding the Fourth Proportional to 28,497.06, 42,756.96 and 11,868.56

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Solution

The fourth proportional to 28,497.06, 42,756.96 and 11,868.56 is: 17,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.06 : 42,756.96 = 11,868.56 : x
  2. Step 2: Convert to fraction form
    28,497.06/42,756.96 = 11,868.56/x
  3. Step 3: Cross multiply
    28,497.06x = 42,756.96 × 11,868.56
  4. Step 4: Simplify right side
    28,497.06x = 507,463,545.18
  5. Step 5: Solve for x
    x = 507,463,545.18/28,497.06
  6. Step 6: Final answer
    x = 17,807.58

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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.