Home / 19,411.63-29,117.22-13,689.04

Finding the Fourth Proportional to 19,411.63, 29,117.22 and 13,689.04

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Solution

The fourth proportional to 19,411.63, 29,117.22 and 13,689.04 is: 20,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.63 : 29,117.22 = 13,689.04 : x
  2. Step 2: Convert to fraction form
    19,411.63/29,117.22 = 13,689.04/x
  3. Step 3: Cross multiply
    19,411.63x = 29,117.22 × 13,689.04
  4. Step 4: Simplify right side
    19,411.63x = 398,586,789.27
  5. Step 5: Solve for x
    x = 398,586,789.27/19,411.63
  6. Step 6: Final answer
    x = 20,533.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.