Home / 22,689.05-31,313.66-13,739.66

Finding the Fourth Proportional to 22,689.05, 31,313.66 and 13,739.66

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Solution

The fourth proportional to 22,689.05, 31,313.66 and 13,739.66 is: 18,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.05 : 31,313.66 = 13,739.66 : x
  2. Step 2: Convert to fraction form
    22,689.05/31,313.66 = 13,739.66/x
  3. Step 3: Cross multiply
    22,689.05x = 31,313.66 × 13,739.66
  4. Step 4: Simplify right side
    22,689.05x = 430,238,816.49
  5. Step 5: Solve for x
    x = 430,238,816.49/22,689.05
  6. Step 6: Final answer
    x = 18,962.40

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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.