Home / 21,230.68-29,247.70-14,845.32

Finding the Fourth Proportional to 21,230.68, 29,247.70 and 14,845.32

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Solution

The fourth proportional to 21,230.68, 29,247.70 and 14,845.32 is: 20,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.68 : 29,247.70 = 14,845.32 : x
  2. Step 2: Convert to fraction form
    21,230.68/29,247.70 = 14,845.32/x
  3. Step 3: Cross multiply
    21,230.68x = 29,247.70 × 14,845.32
  4. Step 4: Simplify right side
    21,230.68x = 434,191,465.76
  5. Step 5: Solve for x
    x = 434,191,465.76/21,230.68
  6. Step 6: Final answer
    x = 20,451.13

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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.