Home / 25,415.19-38,120.96-12,927.42

Finding the Fourth Proportional to 25,415.19, 38,120.96 and 12,927.42

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Solution

The fourth proportional to 25,415.19, 38,120.96 and 12,927.42 is: 19,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.19 : 38,120.96 = 12,927.42 : x
  2. Step 2: Convert to fraction form
    25,415.19/38,120.96 = 12,927.42/x
  3. Step 3: Cross multiply
    25,415.19x = 38,120.96 × 12,927.42
  4. Step 4: Simplify right side
    25,415.19x = 492,805,693.04
  5. Step 5: Solve for x
    x = 492,805,693.04/25,415.19
  6. Step 6: Final answer
    x = 19,390.20

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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.