Home / 20,830.90-31,248.93-6,792.34

Finding the Fourth Proportional to 20,830.90, 31,248.93 and 6,792.34

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Solution

The fourth proportional to 20,830.90, 31,248.93 and 6,792.34 is: 10,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.90 : 31,248.93 = 6,792.34 : x
  2. Step 2: Convert to fraction form
    20,830.90/31,248.93 = 6,792.34/x
  3. Step 3: Cross multiply
    20,830.90x = 31,248.93 × 6,792.34
  4. Step 4: Simplify right side
    20,830.90x = 212,253,200.95
  5. Step 5: Solve for x
    x = 212,253,200.95/20,830.90
  6. Step 6: Final answer
    x = 10,189.35

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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.