Home / 21,825.67-30,130.88-14,693.12

Finding the Fourth Proportional to 21,825.67, 30,130.88 and 14,693.12

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Solution

The fourth proportional to 21,825.67, 30,130.88 and 14,693.12 is: 20,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,825.67 : 30,130.88 = 14,693.12 : x
  2. Step 2: Convert to fraction form
    21,825.67/30,130.88 = 14,693.12/x
  3. Step 3: Cross multiply
    21,825.67x = 30,130.88 × 14,693.12
  4. Step 4: Simplify right side
    21,825.67x = 442,716,635.55
  5. Step 5: Solve for x
    x = 442,716,635.55/21,825.67
  6. Step 6: Final answer
    x = 20,284.22

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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.