Home / 20,012.58-29,849.76-18,856.26

Finding the Fourth Proportional to 20,012.58, 29,849.76 and 18,856.26

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Solution

The fourth proportional to 20,012.58, 29,849.76 and 18,856.26 is: 28,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.58 : 29,849.76 = 18,856.26 : x
  2. Step 2: Convert to fraction form
    20,012.58/29,849.76 = 18,856.26/x
  3. Step 3: Cross multiply
    20,012.58x = 29,849.76 × 18,856.26
  4. Step 4: Simplify right side
    20,012.58x = 562,854,835.50
  5. Step 5: Solve for x
    x = 562,854,835.50/20,012.58
  6. Step 6: Final answer
    x = 28,125.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.