Home / 15,682.96-21,631.08-10,382.32

Finding the Fourth Proportional to 15,682.96, 21,631.08 and 10,382.32

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Solution

The fourth proportional to 15,682.96, 21,631.08 and 10,382.32 is: 14,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.96 : 21,631.08 = 10,382.32 : x
  2. Step 2: Convert to fraction form
    15,682.96/21,631.08 = 10,382.32/x
  3. Step 3: Cross multiply
    15,682.96x = 21,631.08 × 10,382.32
  4. Step 4: Simplify right side
    15,682.96x = 224,580,794.51
  5. Step 5: Solve for x
    x = 224,580,794.51/15,682.96
  6. Step 6: Final answer
    x = 14,320.05

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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.