Home / 20,739.98-28,612.07-14,023.18

Finding the Fourth Proportional to 20,739.98, 28,612.07 and 14,023.18

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Solution

The fourth proportional to 20,739.98, 28,612.07 and 14,023.18 is: 19,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.98 : 28,612.07 = 14,023.18 : x
  2. Step 2: Convert to fraction form
    20,739.98/28,612.07 = 14,023.18/x
  3. Step 3: Cross multiply
    20,739.98x = 28,612.07 × 14,023.18
  4. Step 4: Simplify right side
    20,739.98x = 401,231,994.61
  5. Step 5: Solve for x
    x = 401,231,994.61/20,739.98
  6. Step 6: Final answer
    x = 19,345.82

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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.