Home / 19,994.32-27,585.48-12,929.68

Finding the Fourth Proportional to 19,994.32, 27,585.48 and 12,929.68

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Solution

The fourth proportional to 19,994.32, 27,585.48 and 12,929.68 is: 17,838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.32 : 27,585.48 = 12,929.68 : x
  2. Step 2: Convert to fraction form
    19,994.32/27,585.48 = 12,929.68/x
  3. Step 3: Cross multiply
    19,994.32x = 27,585.48 × 12,929.68
  4. Step 4: Simplify right side
    19,994.32x = 356,671,429.05
  5. Step 5: Solve for x
    x = 356,671,429.05/19,994.32
  6. Step 6: Final answer
    x = 17,838.64

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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.