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Finding the Fourth Proportional to 30,005.40, 44,948.70 and 26,311.80

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Solution

The fourth proportional to 30,005.40, 44,948.70 and 26,311.80 is: 39,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.40 : 44,948.70 = 26,311.80 : x
  2. Step 2: Convert to fraction form
    30,005.40/44,948.70 = 26,311.80/x
  3. Step 3: Cross multiply
    30,005.40x = 44,948.70 × 26,311.80
  4. Step 4: Simplify right side
    30,005.40x = 1,182,681,204.66
  5. Step 5: Solve for x
    x = 1,182,681,204.66/30,005.40
  6. Step 6: Final answer
    x = 39,415.61

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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.