Home / 23,143.61-31,938-12,533.25

Finding the Fourth Proportional to 23,143.61, 31,938 and 12,533.25

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Solution

The fourth proportional to 23,143.61, 31,938 and 12,533.25 is: 17,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.61 : 31,938 = 12,533.25 : x
  2. Step 2: Convert to fraction form
    23,143.61/31,938 = 12,533.25/x
  3. Step 3: Cross multiply
    23,143.61x = 31,938 × 12,533.25
  4. Step 4: Simplify right side
    23,143.61x = 400,286,938.50
  5. Step 5: Solve for x
    x = 400,286,938.50/23,143.61
  6. Step 6: Final answer
    x = 17,295.79

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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.