Home / 34,718.74-47,916.63-21,287.62

Finding the Fourth Proportional to 34,718.74, 47,916.63 and 21,287.62

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Solution

The fourth proportional to 34,718.74, 47,916.63 and 21,287.62 is: 29,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,718.74 : 47,916.63 = 21,287.62 : x
  2. Step 2: Convert to fraction form
    34,718.74/47,916.63 = 21,287.62/x
  3. Step 3: Cross multiply
    34,718.74x = 47,916.63 × 21,287.62
  4. Step 4: Simplify right side
    34,718.74x = 1,020,031,011.12
  5. Step 5: Solve for x
    x = 1,020,031,011.12/34,718.74
  6. Step 6: Final answer
    x = 29,379.84

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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.