Home / 20,570.76-28,384.02-12,073.86

Finding the Fourth Proportional to 20,570.76, 28,384.02 and 12,073.86

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Solution

The fourth proportional to 20,570.76, 28,384.02 and 12,073.86 is: 16,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,570.76 : 28,384.02 = 12,073.86 : x
  2. Step 2: Convert to fraction form
    20,570.76/28,384.02 = 12,073.86/x
  3. Step 3: Cross multiply
    20,570.76x = 28,384.02 × 12,073.86
  4. Step 4: Simplify right side
    20,570.76x = 342,704,683.72
  5. Step 5: Solve for x
    x = 342,704,683.72/20,570.76
  6. Step 6: Final answer
    x = 16,659.80

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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.