Home / 25,653.09-38,479.64-6,931.69

Finding the Fourth Proportional to 25,653.09, 38,479.64 and 6,931.69

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Solution

The fourth proportional to 25,653.09, 38,479.64 and 6,931.69 is: 10,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.09 : 38,479.64 = 6,931.69 : x
  2. Step 2: Convert to fraction form
    25,653.09/38,479.64 = 6,931.69/x
  3. Step 3: Cross multiply
    25,653.09x = 38,479.64 × 6,931.69
  4. Step 4: Simplify right side
    25,653.09x = 266,729,060.37
  5. Step 5: Solve for x
    x = 266,729,060.37/25,653.09
  6. Step 6: Final answer
    x = 10,397.54

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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.