Home / 30,990.18-46,478.29-8,803.07

Finding the Fourth Proportional to 30,990.18, 46,478.29 and 8,803.07

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Solution

The fourth proportional to 30,990.18, 46,478.29 and 8,803.07 is: 13,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.18 : 46,478.29 = 8,803.07 : x
  2. Step 2: Convert to fraction form
    30,990.18/46,478.29 = 8,803.07/x
  3. Step 3: Cross multiply
    30,990.18x = 46,478.29 × 8,803.07
  4. Step 4: Simplify right side
    30,990.18x = 409,151,640.35
  5. Step 5: Solve for x
    x = 409,151,640.35/30,990.18
  6. Step 6: Final answer
    x = 13,202.62

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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.