Home / 22,754.48-31,400.36-12,682.40

Finding the Fourth Proportional to 22,754.48, 31,400.36 and 12,682.40

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Solution

The fourth proportional to 22,754.48, 31,400.36 and 12,682.40 is: 17,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,754.48 : 31,400.36 = 12,682.40 : x
  2. Step 2: Convert to fraction form
    22,754.48/31,400.36 = 12,682.40/x
  3. Step 3: Cross multiply
    22,754.48x = 31,400.36 × 12,682.40
  4. Step 4: Simplify right side
    22,754.48x = 398,231,925.66
  5. Step 5: Solve for x
    x = 398,231,925.66/22,754.48
  6. Step 6: Final answer
    x = 17,501.25

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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.