Home / 22,686.90-31,303.32-13,253.64

Finding the Fourth Proportional to 22,686.90, 31,303.32 and 13,253.64

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Solution

The fourth proportional to 22,686.90, 31,303.32 and 13,253.64 is: 18,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.90 : 31,303.32 = 13,253.64 : x
  2. Step 2: Convert to fraction form
    22,686.90/31,303.32 = 13,253.64/x
  3. Step 3: Cross multiply
    22,686.90x = 31,303.32 × 13,253.64
  4. Step 4: Simplify right side
    22,686.90x = 414,882,934.08
  5. Step 5: Solve for x
    x = 414,882,934.08/22,686.90
  6. Step 6: Final answer
    x = 18,287.33

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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.