Home / 34,478.48-47,578.46-19,371.76

Finding the Fourth Proportional to 34,478.48, 47,578.46 and 19,371.76

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Solution

The fourth proportional to 34,478.48, 47,578.46 and 19,371.76 is: 26,731.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,478.48 : 47,578.46 = 19,371.76 : x
  2. Step 2: Convert to fraction form
    34,478.48/47,578.46 = 19,371.76/x
  3. Step 3: Cross multiply
    34,478.48x = 47,578.46 × 19,371.76
  4. Step 4: Simplify right side
    34,478.48x = 921,678,508.29
  5. Step 5: Solve for x
    x = 921,678,508.29/34,478.48
  6. Step 6: Final answer
    x = 26,731.99

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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.