Home / 25,355.43-34,987.14-15,287.94

Finding the Fourth Proportional to 25,355.43, 34,987.14 and 15,287.94

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Solution

The fourth proportional to 25,355.43, 34,987.14 and 15,287.94 is: 21,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,355.43 : 34,987.14 = 15,287.94 : x
  2. Step 2: Convert to fraction form
    25,355.43/34,987.14 = 15,287.94/x
  3. Step 3: Cross multiply
    25,355.43x = 34,987.14 × 15,287.94
  4. Step 4: Simplify right side
    25,355.43x = 534,881,297.09
  5. Step 5: Solve for x
    x = 534,881,297.09/25,355.43
  6. Step 6: Final answer
    x = 21,095.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.