Home / 25,578.81-38,345.54-9,984.69

Finding the Fourth Proportional to 25,578.81, 38,345.54 and 9,984.69

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Solution

The fourth proportional to 25,578.81, 38,345.54 and 9,984.69 is: 14,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.81 : 38,345.54 = 9,984.69 : x
  2. Step 2: Convert to fraction form
    25,578.81/38,345.54 = 9,984.69/x
  3. Step 3: Cross multiply
    25,578.81x = 38,345.54 × 9,984.69
  4. Step 4: Simplify right side
    25,578.81x = 382,868,279.86
  5. Step 5: Solve for x
    x = 382,868,279.86/25,578.81
  6. Step 6: Final answer
    x = 14,968.18

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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.