Home / 30,666.74-45,990.38-9,885.38

Finding the Fourth Proportional to 30,666.74, 45,990.38 and 9,885.38

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Solution

The fourth proportional to 30,666.74, 45,990.38 and 9,885.38 is: 14,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.74 : 45,990.38 = 9,885.38 : x
  2. Step 2: Convert to fraction form
    30,666.74/45,990.38 = 9,885.38/x
  3. Step 3: Cross multiply
    30,666.74x = 45,990.38 × 9,885.38
  4. Step 4: Simplify right side
    30,666.74x = 454,632,177.41
  5. Step 5: Solve for x
    x = 454,632,177.41/30,666.74
  6. Step 6: Final answer
    x = 14,824.93

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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.