Home / 22,729.77-31,366.37-12,657.99

Finding the Fourth Proportional to 22,729.77, 31,366.37 and 12,657.99

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Solution

The fourth proportional to 22,729.77, 31,366.37 and 12,657.99 is: 17,467.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.77 : 31,366.37 = 12,657.99 : x
  2. Step 2: Convert to fraction form
    22,729.77/31,366.37 = 12,657.99/x
  3. Step 3: Cross multiply
    22,729.77x = 31,366.37 × 12,657.99
  4. Step 4: Simplify right side
    22,729.77x = 397,035,347.07
  5. Step 5: Solve for x
    x = 397,035,347.07/22,729.77
  6. Step 6: Final answer
    x = 17,467.64

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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.