Home / 28,186.14-42,293.79-13,392.30

Finding the Fourth Proportional to 28,186.14, 42,293.79 and 13,392.30

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Solution

The fourth proportional to 28,186.14, 42,293.79 and 13,392.30 is: 20,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.14 : 42,293.79 = 13,392.30 : x
  2. Step 2: Convert to fraction form
    28,186.14/42,293.79 = 13,392.30/x
  3. Step 3: Cross multiply
    28,186.14x = 42,293.79 × 13,392.30
  4. Step 4: Simplify right side
    28,186.14x = 566,411,123.82
  5. Step 5: Solve for x
    x = 566,411,123.82/28,186.14
  6. Step 6: Final answer
    x = 20,095.38

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1.5x scale

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.