Home / 21,329.64-32,011.56-9,643.86

Finding the Fourth Proportional to 21,329.64, 32,011.56 and 9,643.86

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Solution

The fourth proportional to 21,329.64, 32,011.56 and 9,643.86 is: 14,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.64 : 32,011.56 = 9,643.86 : x
  2. Step 2: Convert to fraction form
    21,329.64/32,011.56 = 9,643.86/x
  3. Step 3: Cross multiply
    21,329.64x = 32,011.56 × 9,643.86
  4. Step 4: Simplify right side
    21,329.64x = 308,715,003.02
  5. Step 5: Solve for x
    x = 308,715,003.02/21,329.64
  6. Step 6: Final answer
    x = 14,473.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.