Home / 28,424.47-42,618.48-11,795.98

Finding the Fourth Proportional to 28,424.47, 42,618.48 and 11,795.98

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Solution

The fourth proportional to 28,424.47, 42,618.48 and 11,795.98 is: 17,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.47 : 42,618.48 = 11,795.98 : x
  2. Step 2: Convert to fraction form
    28,424.47/42,618.48 = 11,795.98/x
  3. Step 3: Cross multiply
    28,424.47x = 42,618.48 × 11,795.98
  4. Step 4: Simplify right side
    28,424.47x = 502,726,737.71
  5. Step 5: Solve for x
    x = 502,726,737.71/28,424.47
  6. Step 6: Final answer
    x = 17,686.41

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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.