Home / 21,274.59-31,916.63-6,484.66

Finding the Fourth Proportional to 21,274.59, 31,916.63 and 6,484.66

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Solution

The fourth proportional to 21,274.59, 31,916.63 and 6,484.66 is: 9,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.59 : 31,916.63 = 6,484.66 : x
  2. Step 2: Convert to fraction form
    21,274.59/31,916.63 = 6,484.66/x
  3. Step 3: Cross multiply
    21,274.59x = 31,916.63 × 6,484.66
  4. Step 4: Simplify right side
    21,274.59x = 206,968,381.68
  5. Step 5: Solve for x
    x = 206,968,381.68/21,274.59
  6. Step 6: Final answer
    x = 9,728.43

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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.