Home / 47,916.09-71,862.73-21,247.45

Finding the Fourth Proportional to 47,916.09, 71,862.73 and 21,247.45

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Solution

The fourth proportional to 47,916.09, 71,862.73 and 21,247.45 is: 31,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,916.09 : 71,862.73 = 21,247.45 : x
  2. Step 2: Convert to fraction form
    47,916.09/71,862.73 = 21,247.45/x
  3. Step 3: Cross multiply
    47,916.09x = 71,862.73 × 21,247.45
  4. Step 4: Simplify right side
    47,916.09x = 1,526,899,529.76
  5. Step 5: Solve for x
    x = 1,526,899,529.76/47,916.09
  6. Step 6: Final answer
    x = 31,866.11

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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.