Home / 21,730.40-32,595.60-16,809.65

Finding the Fourth Proportional to 21,730.40, 32,595.60 and 16,809.65

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Solution

The fourth proportional to 21,730.40, 32,595.60 and 16,809.65 is: 25,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.40 : 32,595.60 = 16,809.65 : x
  2. Step 2: Convert to fraction form
    21,730.40/32,595.60 = 16,809.65/x
  3. Step 3: Cross multiply
    21,730.40x = 32,595.60 × 16,809.65
  4. Step 4: Simplify right side
    21,730.40x = 547,920,627.54
  5. Step 5: Solve for x
    x = 547,920,627.54/21,730.40
  6. Step 6: Final answer
    x = 25,214.48

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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.