Home / 25,389.48-38,087.86-7,860.68

Finding the Fourth Proportional to 25,389.48, 38,087.86 and 7,860.68

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Solution

The fourth proportional to 25,389.48, 38,087.86 and 7,860.68 is: 11,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.48 : 38,087.86 = 7,860.68 : x
  2. Step 2: Convert to fraction form
    25,389.48/38,087.86 = 7,860.68/x
  3. Step 3: Cross multiply
    25,389.48x = 38,087.86 × 7,860.68
  4. Step 4: Simplify right side
    25,389.48x = 299,396,479.34
  5. Step 5: Solve for x
    x = 299,396,479.34/25,389.48
  6. Step 6: Final answer
    x = 11,792.15

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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.