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Finding the Fourth Proportional to 40,803.88, 61,189.44 and 12,714.70

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Solution

The fourth proportional to 40,803.88, 61,189.44 and 12,714.70 is: 19,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,803.88 : 61,189.44 = 12,714.70 : x
  2. Step 2: Convert to fraction form
    40,803.88/61,189.44 = 12,714.70/x
  3. Step 3: Cross multiply
    40,803.88x = 61,189.44 × 12,714.70
  4. Step 4: Simplify right side
    40,803.88x = 778,005,372.77
  5. Step 5: Solve for x
    x = 778,005,372.77/40,803.88
  6. Step 6: Final answer
    x = 19,066.95

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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.