Home / 14,031.96-21,045.96-5,715.60

Finding the Fourth Proportional to 14,031.96, 21,045.96 and 5,715.60

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Solution

The fourth proportional to 14,031.96, 21,045.96 and 5,715.60 is: 8,572.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.96 : 21,045.96 = 5,715.60 : x
  2. Step 2: Convert to fraction form
    14,031.96/21,045.96 = 5,715.60/x
  3. Step 3: Cross multiply
    14,031.96x = 21,045.96 × 5,715.60
  4. Step 4: Simplify right side
    14,031.96x = 120,290,288.98
  5. Step 5: Solve for x
    x = 120,290,288.98/14,031.96
  6. Step 6: Final answer
    x = 8,572.59

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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.