Home / 21,307.81-29,395.33-14,932.07

Finding the Fourth Proportional to 21,307.81, 29,395.33 and 14,932.07

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Solution

The fourth proportional to 21,307.81, 29,395.33 and 14,932.07 is: 20,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307.81 : 29,395.33 = 14,932.07 : x
  2. Step 2: Convert to fraction form
    21,307.81/29,395.33 = 14,932.07/x
  3. Step 3: Cross multiply
    21,307.81x = 29,395.33 × 14,932.07
  4. Step 4: Simplify right side
    21,307.81x = 438,933,233.96
  5. Step 5: Solve for x
    x = 438,933,233.96/21,307.81
  6. Step 6: Final answer
    x = 20,599.64

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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.