Home / 23,143.74-31,938.53-12,533.40

Finding the Fourth Proportional to 23,143.74, 31,938.53 and 12,533.40

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Solution

The fourth proportional to 23,143.74, 31,938.53 and 12,533.40 is: 17,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.74 : 31,938.53 = 12,533.40 : x
  2. Step 2: Convert to fraction form
    23,143.74/31,938.53 = 12,533.40/x
  3. Step 3: Cross multiply
    23,143.74x = 31,938.53 × 12,533.40
  4. Step 4: Simplify right side
    23,143.74x = 400,298,371.90
  5. Step 5: Solve for x
    x = 400,298,371.90/23,143.74
  6. Step 6: Final answer
    x = 17,296.18

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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.