Home / 22,685.28-31,303.36-13,252.64

Finding the Fourth Proportional to 22,685.28, 31,303.36 and 13,252.64

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Solution

The fourth proportional to 22,685.28, 31,303.36 and 13,252.64 is: 18,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.28 : 31,303.36 = 13,252.64 : x
  2. Step 2: Convert to fraction form
    22,685.28/31,303.36 = 13,252.64/x
  3. Step 3: Cross multiply
    22,685.28x = 31,303.36 × 13,252.64
  4. Step 4: Simplify right side
    22,685.28x = 414,852,160.87
  5. Step 5: Solve for x
    x = 414,852,160.87/22,685.28
  6. Step 6: Final answer
    x = 18,287.28

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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.