Home / 21,316.48-29,414.67-12,364.57

Finding the Fourth Proportional to 21,316.48, 29,414.67 and 12,364.57

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Solution

The fourth proportional to 21,316.48, 29,414.67 and 12,364.57 is: 17,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.48 : 29,414.67 = 12,364.57 : x
  2. Step 2: Convert to fraction form
    21,316.48/29,414.67 = 12,364.57/x
  3. Step 3: Cross multiply
    21,316.48x = 29,414.67 × 12,364.57
  4. Step 4: Simplify right side
    21,316.48x = 363,699,746.24
  5. Step 5: Solve for x
    x = 363,699,746.24/21,316.48
  6. Step 6: Final answer
    x = 17,061.90

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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.