Home / 19,412.10-29,118.15-10,080.90

Finding the Fourth Proportional to 19,412.10, 29,118.15 and 10,080.90

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Solution

The fourth proportional to 19,412.10, 29,118.15 and 10,080.90 is: 15,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.10 : 29,118.15 = 10,080.90 : x
  2. Step 2: Convert to fraction form
    19,412.10/29,118.15 = 10,080.90/x
  3. Step 3: Cross multiply
    19,412.10x = 29,118.15 × 10,080.90
  4. Step 4: Simplify right side
    19,412.10x = 293,537,158.34
  5. Step 5: Solve for x
    x = 293,537,158.34/19,412.10
  6. Step 6: Final answer
    x = 15,121.35

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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.