Home / 19,330.34-26,638.52-13,731.62

Finding the Fourth Proportional to 19,330.34, 26,638.52 and 13,731.62

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Solution

The fourth proportional to 19,330.34, 26,638.52 and 13,731.62 is: 18,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.34 : 26,638.52 = 13,731.62 : x
  2. Step 2: Convert to fraction form
    19,330.34/26,638.52 = 13,731.62/x
  3. Step 3: Cross multiply
    19,330.34x = 26,638.52 × 13,731.62
  4. Step 4: Simplify right side
    19,330.34x = 365,789,832.15
  5. Step 5: Solve for x
    x = 365,789,832.15/19,330.34
  6. Step 6: Final answer
    x = 18,923.10

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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.