Home / 25,724.16-38,588.76-13,209.84

Finding the Fourth Proportional to 25,724.16, 38,588.76 and 13,209.84

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Solution

The fourth proportional to 25,724.16, 38,588.76 and 13,209.84 is: 19,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,724.16 : 38,588.76 = 13,209.84 : x
  2. Step 2: Convert to fraction form
    25,724.16/38,588.76 = 13,209.84/x
  3. Step 3: Cross multiply
    25,724.16x = 38,588.76 × 13,209.84
  4. Step 4: Simplify right side
    25,724.16x = 509,751,345.40
  5. Step 5: Solve for x
    x = 509,751,345.40/25,724.16
  6. Step 6: Final answer
    x = 19,816.05

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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.