Home / 21,356.42-29,473.16-11,925.59

Finding the Fourth Proportional to 21,356.42, 29,473.16 and 11,925.59

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Solution

The fourth proportional to 21,356.42, 29,473.16 and 11,925.59 is: 16,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.42 : 29,473.16 = 11,925.59 : x
  2. Step 2: Convert to fraction form
    21,356.42/29,473.16 = 11,925.59/x
  3. Step 3: Cross multiply
    21,356.42x = 29,473.16 × 11,925.59
  4. Step 4: Simplify right side
    21,356.42x = 351,484,615.17
  5. Step 5: Solve for x
    x = 351,484,615.17/21,356.42
  6. Step 6: Final answer
    x = 16,458.03

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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.