Home / 25,386.80-38,091.08-9,815.36

Finding the Fourth Proportional to 25,386.80, 38,091.08 and 9,815.36

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Solution

The fourth proportional to 25,386.80, 38,091.08 and 9,815.36 is: 14,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.80 : 38,091.08 = 9,815.36 : x
  2. Step 2: Convert to fraction form
    25,386.80/38,091.08 = 9,815.36/x
  3. Step 3: Cross multiply
    25,386.80x = 38,091.08 × 9,815.36
  4. Step 4: Simplify right side
    25,386.80x = 373,877,662.99
  5. Step 5: Solve for x
    x = 373,877,662.99/25,386.80
  6. Step 6: Final answer
    x = 14,727.25

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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.