Home / 21,038.14-29,035.20-12,085.62

Finding the Fourth Proportional to 21,038.14, 29,035.20 and 12,085.62

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Solution

The fourth proportional to 21,038.14, 29,035.20 and 12,085.62 is: 16,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.14 : 29,035.20 = 12,085.62 : x
  2. Step 2: Convert to fraction form
    21,038.14/29,035.20 = 12,085.62/x
  3. Step 3: Cross multiply
    21,038.14x = 29,035.20 × 12,085.62
  4. Step 4: Simplify right side
    21,038.14x = 350,908,343.94
  5. Step 5: Solve for x
    x = 350,908,343.94/21,038.14
  6. Step 6: Final answer
    x = 16,679.63

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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.