Home / 20,778.84-31,173.66-5,988.96

Finding the Fourth Proportional to 20,778.84, 31,173.66 and 5,988.96

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Solution

The fourth proportional to 20,778.84, 31,173.66 and 5,988.96 is: 8,985.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778.84 : 31,173.66 = 5,988.96 : x
  2. Step 2: Convert to fraction form
    20,778.84/31,173.66 = 5,988.96/x
  3. Step 3: Cross multiply
    20,778.84x = 31,173.66 × 5,988.96
  4. Step 4: Simplify right side
    20,778.84x = 186,697,802.79
  5. Step 5: Solve for x
    x = 186,697,802.79/20,778.84
  6. Step 6: Final answer
    x = 8,985.00

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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.