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Finding the Fourth Proportional to 29,291.48, 40,440.90 and 19,237.72

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Solution

The fourth proportional to 29,291.48, 40,440.90 and 19,237.72 is: 26,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.48 : 40,440.90 = 19,237.72 : x
  2. Step 2: Convert to fraction form
    29,291.48/40,440.90 = 19,237.72/x
  3. Step 3: Cross multiply
    29,291.48x = 40,440.90 × 19,237.72
  4. Step 4: Simplify right side
    29,291.48x = 777,990,710.75
  5. Step 5: Solve for x
    x = 777,990,710.75/29,291.48
  6. Step 6: Final answer
    x = 26,560.31

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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.