Home / 22,989.02-31,725.40-12,916.85

Finding the Fourth Proportional to 22,989.02, 31,725.40 and 12,916.85

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Solution

The fourth proportional to 22,989.02, 31,725.40 and 12,916.85 is: 17,825.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.02 : 31,725.40 = 12,916.85 : x
  2. Step 2: Convert to fraction form
    22,989.02/31,725.40 = 12,916.85/x
  3. Step 3: Cross multiply
    22,989.02x = 31,725.40 × 12,916.85
  4. Step 4: Simplify right side
    22,989.02x = 409,792,342.26
  5. Step 5: Solve for x
    x = 409,792,342.26/22,989.02
  6. Step 6: Final answer
    x = 17,825.57

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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.