Home / 21,266.28-29,350.28-12,316.59

Finding the Fourth Proportional to 21,266.28, 29,350.28 and 12,316.59

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Solution

The fourth proportional to 21,266.28, 29,350.28 and 12,316.59 is: 16,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.28 : 29,350.28 = 12,316.59 : x
  2. Step 2: Convert to fraction form
    21,266.28/29,350.28 = 12,316.59/x
  3. Step 3: Cross multiply
    21,266.28x = 29,350.28 × 12,316.59
  4. Step 4: Simplify right side
    21,266.28x = 361,495,395.94
  5. Step 5: Solve for x
    x = 361,495,395.94/21,266.28
  6. Step 6: Final answer
    x = 16,998.53

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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.