Home / 19,994.09-30,009.32-10,642.02

Finding the Fourth Proportional to 19,994.09, 30,009.32 and 10,642.02

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Solution

The fourth proportional to 19,994.09, 30,009.32 and 10,642.02 is: 15,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.09 : 30,009.32 = 10,642.02 : x
  2. Step 2: Convert to fraction form
    19,994.09/30,009.32 = 10,642.02/x
  3. Step 3: Cross multiply
    19,994.09x = 30,009.32 × 10,642.02
  4. Step 4: Simplify right side
    19,994.09x = 319,359,657.79
  5. Step 5: Solve for x
    x = 319,359,657.79/19,994.09
  6. Step 6: Final answer
    x = 15,972.70

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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.