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Finding the Fourth Proportional to 28,003.64, 42,006.64 and 13,024.82

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Solution

The fourth proportional to 28,003.64, 42,006.64 and 13,024.82 is: 19,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.64 : 42,006.64 = 13,024.82 : x
  2. Step 2: Convert to fraction form
    28,003.64/42,006.64 = 13,024.82/x
  3. Step 3: Cross multiply
    28,003.64x = 42,006.64 × 13,024.82
  4. Step 4: Simplify right side
    28,003.64x = 547,128,682.21
  5. Step 5: Solve for x
    x = 547,128,682.21/28,003.64
  6. Step 6: Final answer
    x = 19,537.77

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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.