Home / 19,320.81-28,975.86-6,839.19

Finding the Fourth Proportional to 19,320.81, 28,975.86 and 6,839.19

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Solution

The fourth proportional to 19,320.81, 28,975.86 and 6,839.19 is: 10,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.81 : 28,975.86 = 6,839.19 : x
  2. Step 2: Convert to fraction form
    19,320.81/28,975.86 = 6,839.19/x
  3. Step 3: Cross multiply
    19,320.81x = 28,975.86 × 6,839.19
  4. Step 4: Simplify right side
    19,320.81x = 198,171,301.61
  5. Step 5: Solve for x
    x = 198,171,301.61/19,320.81
  6. Step 6: Final answer
    x = 10,256.89

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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.