Home / 28,637.78-42,969.56-15,474.74

Finding the Fourth Proportional to 28,637.78, 42,969.56 and 15,474.74

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Solution

The fourth proportional to 28,637.78, 42,969.56 and 15,474.74 is: 23,219.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.78 : 42,969.56 = 15,474.74 : x
  2. Step 2: Convert to fraction form
    28,637.78/42,969.56 = 15,474.74/x
  3. Step 3: Cross multiply
    28,637.78x = 42,969.56 × 15,474.74
  4. Step 4: Simplify right side
    28,637.78x = 664,942,476.69
  5. Step 5: Solve for x
    x = 664,942,476.69/28,637.78
  6. Step 6: Final answer
    x = 23,219.07

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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.