Home / 21,248.32-29,327.52-13,783.36

Finding the Fourth Proportional to 21,248.32, 29,327.52 and 13,783.36

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Solution

The fourth proportional to 21,248.32, 29,327.52 and 13,783.36 is: 19,024.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.32 : 29,327.52 = 13,783.36 : x
  2. Step 2: Convert to fraction form
    21,248.32/29,327.52 = 13,783.36/x
  3. Step 3: Cross multiply
    21,248.32x = 29,327.52 × 13,783.36
  4. Step 4: Simplify right side
    21,248.32x = 404,231,766.07
  5. Step 5: Solve for x
    x = 404,231,766.07/21,248.32
  6. Step 6: Final answer
    x = 19,024.18

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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.