Home / 25,351.40-34,987.86-15,284.99

Finding the Fourth Proportional to 25,351.40, 34,987.86 and 15,284.99

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Solution

The fourth proportional to 25,351.40, 34,987.86 and 15,284.99 is: 21,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,351.40 : 34,987.86 = 15,284.99 : x
  2. Step 2: Convert to fraction form
    25,351.40/34,987.86 = 15,284.99/x
  3. Step 3: Cross multiply
    25,351.40x = 34,987.86 × 15,284.99
  4. Step 4: Simplify right side
    25,351.40x = 534,788,915.28
  5. Step 5: Solve for x
    x = 534,788,915.28/25,351.40
  6. Step 6: Final answer
    x = 21,095.05

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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.