Home / 21,070.98-29,027.14-18,036.43

Finding the Fourth Proportional to 21,070.98, 29,027.14 and 18,036.43

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Solution

The fourth proportional to 21,070.98, 29,027.14 and 18,036.43 is: 24,846.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.98 : 29,027.14 = 18,036.43 : x
  2. Step 2: Convert to fraction form
    21,070.98/29,027.14 = 18,036.43/x
  3. Step 3: Cross multiply
    21,070.98x = 29,027.14 × 18,036.43
  4. Step 4: Simplify right side
    21,070.98x = 523,545,861.05
  5. Step 5: Solve for x
    x = 523,545,861.05/21,070.98
  6. Step 6: Final answer
    x = 24,846.77

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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.