Home / 28,127.94-42,178.86-10,354.11

Finding the Fourth Proportional to 28,127.94, 42,178.86 and 10,354.11

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Solution

The fourth proportional to 28,127.94, 42,178.86 and 10,354.11 is: 15,526.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.94 : 42,178.86 = 10,354.11 : x
  2. Step 2: Convert to fraction form
    28,127.94/42,178.86 = 10,354.11/x
  3. Step 3: Cross multiply
    28,127.94x = 42,178.86 × 10,354.11
  4. Step 4: Simplify right side
    28,127.94x = 436,724,556.11
  5. Step 5: Solve for x
    x = 436,724,556.11/28,127.94
  6. Step 6: Final answer
    x = 15,526.36

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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.