Home / 19,705.12-29,568.72-10,470.88

Finding the Fourth Proportional to 19,705.12, 29,568.72 and 10,470.88

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Solution

The fourth proportional to 19,705.12, 29,568.72 and 10,470.88 is: 15,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.12 : 29,568.72 = 10,470.88 : x
  2. Step 2: Convert to fraction form
    19,705.12/29,568.72 = 10,470.88/x
  3. Step 3: Cross multiply
    19,705.12x = 29,568.72 × 10,470.88
  4. Step 4: Simplify right side
    19,705.12x = 309,610,518.87
  5. Step 5: Solve for x
    x = 309,610,518.87/19,705.12
  6. Step 6: Final answer
    x = 15,712.19

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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.