Home / 20,903.40-28,847.34-11,950.47

Finding the Fourth Proportional to 20,903.40, 28,847.34 and 11,950.47

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Solution

The fourth proportional to 20,903.40, 28,847.34 and 11,950.47 is: 16,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.40 : 28,847.34 = 11,950.47 : x
  2. Step 2: Convert to fraction form
    20,903.40/28,847.34 = 11,950.47/x
  3. Step 3: Cross multiply
    20,903.40x = 28,847.34 × 11,950.47
  4. Step 4: Simplify right side
    20,903.40x = 344,739,271.25
  5. Step 5: Solve for x
    x = 344,739,271.25/20,903.40
  6. Step 6: Final answer
    x = 16,492.02

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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.