Home / 20,424.45-28,190.58-12,473.35

Finding the Fourth Proportional to 20,424.45, 28,190.58 and 12,473.35

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Solution

The fourth proportional to 20,424.45, 28,190.58 and 12,473.35 is: 17,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.45 : 28,190.58 = 12,473.35 : x
  2. Step 2: Convert to fraction form
    20,424.45/28,190.58 = 12,473.35/x
  3. Step 3: Cross multiply
    20,424.45x = 28,190.58 × 12,473.35
  4. Step 4: Simplify right side
    20,424.45x = 351,630,971.04
  5. Step 5: Solve for x
    x = 351,630,971.04/20,424.45
  6. Step 6: Final answer
    x = 17,216.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.