Home / 22,600.72-31,185.96-12,528.64

Finding the Fourth Proportional to 22,600.72, 31,185.96 and 12,528.64

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Solution

The fourth proportional to 22,600.72, 31,185.96 and 12,528.64 is: 17,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,600.72 : 31,185.96 = 12,528.64 : x
  2. Step 2: Convert to fraction form
    22,600.72/31,185.96 = 12,528.64/x
  3. Step 3: Cross multiply
    22,600.72x = 31,185.96 × 12,528.64
  4. Step 4: Simplify right side
    22,600.72x = 390,717,509.96
  5. Step 5: Solve for x
    x = 390,717,509.96/22,600.72
  6. Step 6: Final answer
    x = 17,287.84

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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.