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Finding the Fourth Proportional to 21,045.78, 29,041.95 and 11,614.32

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Solution

The fourth proportional to 21,045.78, 29,041.95 and 11,614.32 is: 16,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.78 : 29,041.95 = 11,614.32 : x
  2. Step 2: Convert to fraction form
    21,045.78/29,041.95 = 11,614.32/x
  3. Step 3: Cross multiply
    21,045.78x = 29,041.95 × 11,614.32
  4. Step 4: Simplify right side
    21,045.78x = 337,302,500.72
  5. Step 5: Solve for x
    x = 337,302,500.72/21,045.78
  6. Step 6: Final answer
    x = 16,027.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.