Home / 21,037.30-29,027.90-12,085.18

Finding the Fourth Proportional to 21,037.30, 29,027.90 and 12,085.18

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Solution

The fourth proportional to 21,037.30, 29,027.90 and 12,085.18 is: 16,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.30 : 29,027.90 = 12,085.18 : x
  2. Step 2: Convert to fraction form
    21,037.30/29,027.90 = 12,085.18/x
  3. Step 3: Cross multiply
    21,037.30x = 29,027.90 × 12,085.18
  4. Step 4: Simplify right side
    21,037.30x = 350,807,396.52
  5. Step 5: Solve for x
    x = 350,807,396.52/21,037.30
  6. Step 6: Final answer
    x = 16,675.50

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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.