Home / 30,946.06-42,706.24-18,847.11

Finding the Fourth Proportional to 30,946.06, 42,706.24 and 18,847.11

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Solution

The fourth proportional to 30,946.06, 42,706.24 and 18,847.11 is: 26,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,946.06 : 42,706.24 = 18,847.11 : x
  2. Step 2: Convert to fraction form
    30,946.06/42,706.24 = 18,847.11/x
  3. Step 3: Cross multiply
    30,946.06x = 42,706.24 × 18,847.11
  4. Step 4: Simplify right side
    30,946.06x = 804,888,895.20
  5. Step 5: Solve for x
    x = 804,888,895.20/30,946.06
  6. Step 6: Final answer
    x = 26,009.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.