Home / 28,671.42-43,000.29-12,031.77

Finding the Fourth Proportional to 28,671.42, 43,000.29 and 12,031.77

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Solution

The fourth proportional to 28,671.42, 43,000.29 and 12,031.77 is: 18,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.42 : 43,000.29 = 12,031.77 : x
  2. Step 2: Convert to fraction form
    28,671.42/43,000.29 = 12,031.77/x
  3. Step 3: Cross multiply
    28,671.42x = 43,000.29 × 12,031.77
  4. Step 4: Simplify right side
    28,671.42x = 517,369,431.49
  5. Step 5: Solve for x
    x = 517,369,431.49/28,671.42
  6. Step 6: Final answer
    x = 18,044.78

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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.