Home / 28,220.70-42,293.92-15,746.60

Finding the Fourth Proportional to 28,220.70, 42,293.92 and 15,746.60

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Solution

The fourth proportional to 28,220.70, 42,293.92 and 15,746.60 is: 23,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.70 : 42,293.92 = 15,746.60 : x
  2. Step 2: Convert to fraction form
    28,220.70/42,293.92 = 15,746.60/x
  3. Step 3: Cross multiply
    28,220.70x = 42,293.92 × 15,746.60
  4. Step 4: Simplify right side
    28,220.70x = 665,985,440.67
  5. Step 5: Solve for x
    x = 665,985,440.67/28,220.70
  6. Step 6: Final answer
    x = 23,599.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.