Home / 20,761.42-28,650.76-14,803.46

Finding the Fourth Proportional to 20,761.42, 28,650.76 and 14,803.46

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Solution

The fourth proportional to 20,761.42, 28,650.76 and 14,803.46 is: 20,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.42 : 28,650.76 = 14,803.46 : x
  2. Step 2: Convert to fraction form
    20,761.42/28,650.76 = 14,803.46/x
  3. Step 3: Cross multiply
    20,761.42x = 28,650.76 × 14,803.46
  4. Step 4: Simplify right side
    20,761.42x = 424,130,379.63
  5. Step 5: Solve for x
    x = 424,130,379.63/20,761.42
  6. Step 6: Final answer
    x = 20,428.78

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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.