Home / 22,943.52-31,662.08-13,389.96

Finding the Fourth Proportional to 22,943.52, 31,662.08 and 13,389.96

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Solution

The fourth proportional to 22,943.52, 31,662.08 and 13,389.96 is: 18,478.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,943.52 : 31,662.08 = 13,389.96 : x
  2. Step 2: Convert to fraction form
    22,943.52/31,662.08 = 13,389.96/x
  3. Step 3: Cross multiply
    22,943.52x = 31,662.08 × 13,389.96
  4. Step 4: Simplify right side
    22,943.52x = 423,953,984.72
  5. Step 5: Solve for x
    x = 423,953,984.72/22,943.52
  6. Step 6: Final answer
    x = 18,478.16

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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.