Home / 29,214.35-40,315.68-15,785.57

Finding the Fourth Proportional to 29,214.35, 40,315.68 and 15,785.57

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Solution

The fourth proportional to 29,214.35, 40,315.68 and 15,785.57 is: 21,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,214.35 : 40,315.68 = 15,785.57 : x
  2. Step 2: Convert to fraction form
    29,214.35/40,315.68 = 15,785.57/x
  3. Step 3: Cross multiply
    29,214.35x = 40,315.68 × 15,785.57
  4. Step 4: Simplify right side
    29,214.35x = 636,405,955.18
  5. Step 5: Solve for x
    x = 636,405,955.18/29,214.35
  6. Step 6: Final answer
    x = 21,784.02

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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.