Home / 22,700.46-31,326.16-12,628.68

Finding the Fourth Proportional to 22,700.46, 31,326.16 and 12,628.68

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Solution

The fourth proportional to 22,700.46, 31,326.16 and 12,628.68 is: 17,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.46 : 31,326.16 = 12,628.68 : x
  2. Step 2: Convert to fraction form
    22,700.46/31,326.16 = 12,628.68/x
  3. Step 3: Cross multiply
    22,700.46x = 31,326.16 × 12,628.68
  4. Step 4: Simplify right side
    22,700.46x = 395,607,987.13
  5. Step 5: Solve for x
    x = 395,607,987.13/22,700.46
  6. Step 6: Final answer
    x = 17,427.32

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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.