Home / 22,736.13-31,376.40-12,665.25

Finding the Fourth Proportional to 22,736.13, 31,376.40 and 12,665.25

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Solution

The fourth proportional to 22,736.13, 31,376.40 and 12,665.25 is: 17,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,736.13 : 31,376.40 = 12,665.25 : x
  2. Step 2: Convert to fraction form
    22,736.13/31,376.40 = 12,665.25/x
  3. Step 3: Cross multiply
    22,736.13x = 31,376.40 × 12,665.25
  4. Step 4: Simplify right side
    22,736.13x = 397,389,950.10
  5. Step 5: Solve for x
    x = 397,389,950.10/22,736.13
  6. Step 6: Final answer
    x = 17,478.35

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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.