Home / 29,245.32-40,358.39-15,816.47

Finding the Fourth Proportional to 29,245.32, 40,358.39 and 15,816.47

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Solution

The fourth proportional to 29,245.32, 40,358.39 and 15,816.47 is: 21,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,245.32 : 40,358.39 = 15,816.47 : x
  2. Step 2: Convert to fraction form
    29,245.32/40,358.39 = 15,816.47/x
  3. Step 3: Cross multiply
    29,245.32x = 40,358.39 × 15,816.47
  4. Step 4: Simplify right side
    29,245.32x = 638,326,983.81
  5. Step 5: Solve for x
    x = 638,326,983.81/29,245.32
  6. Step 6: Final answer
    x = 21,826.64

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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.