Home / 34,578.16-47,718.96-20,239.42

Finding the Fourth Proportional to 34,578.16, 47,718.96 and 20,239.42

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Solution

The fourth proportional to 34,578.16, 47,718.96 and 20,239.42 is: 27,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,578.16 : 47,718.96 = 20,239.42 : x
  2. Step 2: Convert to fraction form
    34,578.16/47,718.96 = 20,239.42/x
  3. Step 3: Cross multiply
    34,578.16x = 47,718.96 × 20,239.42
  4. Step 4: Simplify right side
    34,578.16x = 965,803,967.68
  5. Step 5: Solve for x
    x = 965,803,967.68/34,578.16
  6. Step 6: Final answer
    x = 27,931.04

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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.