Home / 22,989.80-31,723.58-12,916.64

Finding the Fourth Proportional to 22,989.80, 31,723.58 and 12,916.64

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Solution

The fourth proportional to 22,989.80, 31,723.58 and 12,916.64 is: 17,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.80 : 31,723.58 = 12,916.64 : x
  2. Step 2: Convert to fraction form
    22,989.80/31,723.58 = 12,916.64/x
  3. Step 3: Cross multiply
    22,989.80x = 31,723.58 × 12,916.64
  4. Step 4: Simplify right side
    22,989.80x = 409,762,062.37
  5. Step 5: Solve for x
    x = 409,762,062.37/22,989.80
  6. Step 6: Final answer
    x = 17,823.65

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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.