Home / 21,313.44-29,411.28-12,360.24

Finding the Fourth Proportional to 21,313.44, 29,411.28 and 12,360.24

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Solution

The fourth proportional to 21,313.44, 29,411.28 and 12,360.24 is: 17,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.44 : 29,411.28 = 12,360.24 : x
  2. Step 2: Convert to fraction form
    21,313.44/29,411.28 = 12,360.24/x
  3. Step 3: Cross multiply
    21,313.44x = 29,411.28 × 12,360.24
  4. Step 4: Simplify right side
    21,313.44x = 363,530,479.51
  5. Step 5: Solve for x
    x = 363,530,479.51/21,313.44
  6. Step 6: Final answer
    x = 17,056.40

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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.