Home / 21,448.55-29,598.08-11,888.40

Finding the Fourth Proportional to 21,448.55, 29,598.08 and 11,888.40

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Solution

The fourth proportional to 21,448.55, 29,598.08 and 11,888.40 is: 16,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.55 : 29,598.08 = 11,888.40 : x
  2. Step 2: Convert to fraction form
    21,448.55/29,598.08 = 11,888.40/x
  3. Step 3: Cross multiply
    21,448.55x = 29,598.08 × 11,888.40
  4. Step 4: Simplify right side
    21,448.55x = 351,873,716.40
  5. Step 5: Solve for x
    x = 351,873,716.40/21,448.55
  6. Step 6: Final answer
    x = 16,405.48

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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.