Home / 28,497.05-42,719.43-10,953.66

Finding the Fourth Proportional to 28,497.05, 42,719.43 and 10,953.66

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Solution

The fourth proportional to 28,497.05, 42,719.43 and 10,953.66 is: 16,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.05 : 42,719.43 = 10,953.66 : x
  2. Step 2: Convert to fraction form
    28,497.05/42,719.43 = 10,953.66/x
  3. Step 3: Cross multiply
    28,497.05x = 42,719.43 × 10,953.66
  4. Step 4: Simplify right side
    28,497.05x = 467,934,111.61
  5. Step 5: Solve for x
    x = 467,934,111.61/28,497.05
  6. Step 6: Final answer
    x = 16,420.44

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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.