Home / 21,368.76-29,482.38-12,414.48

Finding the Fourth Proportional to 21,368.76, 29,482.38 and 12,414.48

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Solution

The fourth proportional to 21,368.76, 29,482.38 and 12,414.48 is: 17,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.76 : 29,482.38 = 12,414.48 : x
  2. Step 2: Convert to fraction form
    21,368.76/29,482.38 = 12,414.48/x
  3. Step 3: Cross multiply
    21,368.76x = 29,482.38 × 12,414.48
  4. Step 4: Simplify right side
    21,368.76x = 366,008,416.86
  5. Step 5: Solve for x
    x = 366,008,416.86/21,368.76
  6. Step 6: Final answer
    x = 17,128.20

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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.