Home / 19,657.20-29,442.60-11,852.40

Finding the Fourth Proportional to 19,657.20, 29,442.60 and 11,852.40

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Solution

The fourth proportional to 19,657.20, 29,442.60 and 11,852.40 is: 17,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.20 : 29,442.60 = 11,852.40 : x
  2. Step 2: Convert to fraction form
    19,657.20/29,442.60 = 11,852.40/x
  3. Step 3: Cross multiply
    19,657.20x = 29,442.60 × 11,852.40
  4. Step 4: Simplify right side
    19,657.20x = 348,965,472.24
  5. Step 5: Solve for x
    x = 348,965,472.24/19,657.20
  6. Step 6: Final answer
    x = 17,752.55

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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.