Home / 28,744.10-43,116.15-19,412.90

Finding the Fourth Proportional to 28,744.10, 43,116.15 and 19,412.90

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Solution

The fourth proportional to 28,744.10, 43,116.15 and 19,412.90 is: 29,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.10 : 43,116.15 = 19,412.90 : x
  2. Step 2: Convert to fraction form
    28,744.10/43,116.15 = 19,412.90/x
  3. Step 3: Cross multiply
    28,744.10x = 43,116.15 × 19,412.90
  4. Step 4: Simplify right side
    28,744.10x = 837,009,508.34
  5. Step 5: Solve for x
    x = 837,009,508.34/28,744.10
  6. Step 6: Final answer
    x = 29,119.35

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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.