Home / 19,680.08-29,529.36-9,820.13

Finding the Fourth Proportional to 19,680.08, 29,529.36 and 9,820.13

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Solution

The fourth proportional to 19,680.08, 29,529.36 and 9,820.13 is: 14,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.08 : 29,529.36 = 9,820.13 : x
  2. Step 2: Convert to fraction form
    19,680.08/29,529.36 = 9,820.13/x
  3. Step 3: Cross multiply
    19,680.08x = 29,529.36 × 9,820.13
  4. Step 4: Simplify right side
    19,680.08x = 289,982,006.37
  5. Step 5: Solve for x
    x = 289,982,006.37/19,680.08
  6. Step 6: Final answer
    x = 14,734.80

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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.