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Finding the Fourth Proportional to 19,405.57, 26,764.02 and 13,030.24

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Solution

The fourth proportional to 19,405.57, 26,764.02 and 13,030.24 is: 17,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.57 : 26,764.02 = 13,030.24 : x
  2. Step 2: Convert to fraction form
    19,405.57/26,764.02 = 13,030.24/x
  3. Step 3: Cross multiply
    19,405.57x = 26,764.02 × 13,030.24
  4. Step 4: Simplify right side
    19,405.57x = 348,741,537.05
  5. Step 5: Solve for x
    x = 348,741,537.05/19,405.57
  6. Step 6: Final answer
    x = 17,971.21

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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.