Home / 14,531.74-20,047.71-8,939.50

Finding the Fourth Proportional to 14,531.74, 20,047.71 and 8,939.50

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Solution

The fourth proportional to 14,531.74, 20,047.71 and 8,939.50 is: 12,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,531.74 : 20,047.71 = 8,939.50 : x
  2. Step 2: Convert to fraction form
    14,531.74/20,047.71 = 8,939.50/x
  3. Step 3: Cross multiply
    14,531.74x = 20,047.71 × 8,939.50
  4. Step 4: Simplify right side
    14,531.74x = 179,216,503.55
  5. Step 5: Solve for x
    x = 179,216,503.55/14,531.74
  6. Step 6: Final answer
    x = 12,332.76

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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.