Home / 19,326.74-28,990.46-12,705.41

Finding the Fourth Proportional to 19,326.74, 28,990.46 and 12,705.41

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Solution

The fourth proportional to 19,326.74, 28,990.46 and 12,705.41 is: 19,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.74 : 28,990.46 = 12,705.41 : x
  2. Step 2: Convert to fraction form
    19,326.74/28,990.46 = 12,705.41/x
  3. Step 3: Cross multiply
    19,326.74x = 28,990.46 × 12,705.41
  4. Step 4: Simplify right side
    19,326.74x = 368,335,784.63
  5. Step 5: Solve for x
    x = 368,335,784.63/19,326.74
  6. Step 6: Final answer
    x = 19,058.36

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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.