Home / 19,111.02-28,655.87-15,187.38

Finding the Fourth Proportional to 19,111.02, 28,655.87 and 15,187.38

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Solution

The fourth proportional to 19,111.02, 28,655.87 and 15,187.38 is: 22,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.02 : 28,655.87 = 15,187.38 : x
  2. Step 2: Convert to fraction form
    19,111.02/28,655.87 = 15,187.38/x
  3. Step 3: Cross multiply
    19,111.02x = 28,655.87 × 15,187.38
  4. Step 4: Simplify right side
    19,111.02x = 435,207,510.98
  5. Step 5: Solve for x
    x = 435,207,510.98/19,111.02
  6. Step 6: Final answer
    x = 22,772.59

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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.