Home / 25,215.91-37,819.80-7,681.63

Finding the Fourth Proportional to 25,215.91, 37,819.80 and 7,681.63

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Solution

The fourth proportional to 25,215.91, 37,819.80 and 7,681.63 is: 11,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,215.91 : 37,819.80 = 7,681.63 : x
  2. Step 2: Convert to fraction form
    25,215.91/37,819.80 = 7,681.63/x
  3. Step 3: Cross multiply
    25,215.91x = 37,819.80 × 7,681.63
  4. Step 4: Simplify right side
    25,215.91x = 290,517,710.27
  5. Step 5: Solve for x
    x = 290,517,710.27/25,215.91
  6. Step 6: Final answer
    x = 11,521.21

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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.