Home / 25,707.36-38,555.28-7,240.80

Finding the Fourth Proportional to 25,707.36, 38,555.28 and 7,240.80

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Solution

The fourth proportional to 25,707.36, 38,555.28 and 7,240.80 is: 10,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.36 : 38,555.28 = 7,240.80 : x
  2. Step 2: Convert to fraction form
    25,707.36/38,555.28 = 7,240.80/x
  3. Step 3: Cross multiply
    25,707.36x = 38,555.28 × 7,240.80
  4. Step 4: Simplify right side
    25,707.36x = 279,171,071.42
  5. Step 5: Solve for x
    x = 279,171,071.42/25,707.36
  6. Step 6: Final answer
    x = 10,859.58

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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.