Home / 42,418.27-63,628.31-12,836.06

Finding the Fourth Proportional to 42,418.27, 63,628.31 and 12,836.06

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Solution

The fourth proportional to 42,418.27, 63,628.31 and 12,836.06 is: 19,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.27 : 63,628.31 = 12,836.06 : x
  2. Step 2: Convert to fraction form
    42,418.27/63,628.31 = 12,836.06/x
  3. Step 3: Cross multiply
    42,418.27x = 63,628.31 × 12,836.06
  4. Step 4: Simplify right side
    42,418.27x = 816,736,518.81
  5. Step 5: Solve for x
    x = 816,736,518.81/42,418.27
  6. Step 6: Final answer
    x = 19,254.36

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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.