Home / 22,500.60-31,050.86-12,429.60

Finding the Fourth Proportional to 22,500.60, 31,050.86 and 12,429.60

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Solution

The fourth proportional to 22,500.60, 31,050.86 and 12,429.60 is: 17,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,500.60 : 31,050.86 = 12,429.60 : x
  2. Step 2: Convert to fraction form
    22,500.60/31,050.86 = 12,429.60/x
  3. Step 3: Cross multiply
    22,500.60x = 31,050.86 × 12,429.60
  4. Step 4: Simplify right side
    22,500.60x = 385,949,707.31
  5. Step 5: Solve for x
    x = 385,949,707.31/22,500.60
  6. Step 6: Final answer
    x = 17,152.86

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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.