Home / 21,316.48-29,416.15-12,363.42

Finding the Fourth Proportional to 21,316.48, 29,416.15 and 12,363.42

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Solution

The fourth proportional to 21,316.48, 29,416.15 and 12,363.42 is: 17,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.48 : 29,416.15 = 12,363.42 : x
  2. Step 2: Convert to fraction form
    21,316.48/29,416.15 = 12,363.42/x
  3. Step 3: Cross multiply
    21,316.48x = 29,416.15 × 12,363.42
  4. Step 4: Simplify right side
    21,316.48x = 363,684,217.23
  5. Step 5: Solve for x
    x = 363,684,217.23/21,316.48
  6. Step 6: Final answer
    x = 17,061.18

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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.