Home / 22,071.64-30,458.58-13,455.28

Finding the Fourth Proportional to 22,071.64, 30,458.58 and 13,455.28

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Solution

The fourth proportional to 22,071.64, 30,458.58 and 13,455.28 is: 18,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,071.64 : 30,458.58 = 13,455.28 : x
  2. Step 2: Convert to fraction form
    22,071.64/30,458.58 = 13,455.28/x
  3. Step 3: Cross multiply
    22,071.64x = 30,458.58 × 13,455.28
  4. Step 4: Simplify right side
    22,071.64x = 409,828,722.30
  5. Step 5: Solve for x
    x = 409,828,722.30/22,071.64
  6. Step 6: Final answer
    x = 18,568.11

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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.