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Finding the Fourth Proportional to 22,953.40, 34,430.03 and 12,953.61

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Solution

The fourth proportional to 22,953.40, 34,430.03 and 12,953.61 is: 19,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,953.40 : 34,430.03 = 12,953.61 : x
  2. Step 2: Convert to fraction form
    22,953.40/34,430.03 = 12,953.61/x
  3. Step 3: Cross multiply
    22,953.40x = 34,430.03 × 12,953.61
  4. Step 4: Simplify right side
    22,953.40x = 445,993,180.91
  5. Step 5: Solve for x
    x = 445,993,180.91/22,953.40
  6. Step 6: Final answer
    x = 19,430.38

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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.