Home / 22,718.32-31,342.58-16,764.20

Finding the Fourth Proportional to 22,718.32, 31,342.58 and 16,764.20

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Solution

The fourth proportional to 22,718.32, 31,342.58 and 16,764.20 is: 23,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.32 : 31,342.58 = 16,764.20 : x
  2. Step 2: Convert to fraction form
    22,718.32/31,342.58 = 16,764.20/x
  3. Step 3: Cross multiply
    22,718.32x = 31,342.58 × 16,764.20
  4. Step 4: Simplify right side
    22,718.32x = 525,433,279.64
  5. Step 5: Solve for x
    x = 525,433,279.64/22,718.32
  6. Step 6: Final answer
    x = 23,128.17

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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.