Home / 22,775.60-31,430.50-12,704.70

Finding the Fourth Proportional to 22,775.60, 31,430.50 and 12,704.70

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Solution

The fourth proportional to 22,775.60, 31,430.50 and 12,704.70 is: 17,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.60 : 31,430.50 = 12,704.70 : x
  2. Step 2: Convert to fraction form
    22,775.60/31,430.50 = 12,704.70/x
  3. Step 3: Cross multiply
    22,775.60x = 31,430.50 × 12,704.70
  4. Step 4: Simplify right side
    22,775.60x = 399,315,073.35
  5. Step 5: Solve for x
    x = 399,315,073.35/22,775.60
  6. Step 6: Final answer
    x = 17,532.58

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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.