Home / 19,242.45-28,881.90-11,861.33

Finding the Fourth Proportional to 19,242.45, 28,881.90 and 11,861.33

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Solution

The fourth proportional to 19,242.45, 28,881.90 and 11,861.33 is: 17,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.45 : 28,881.90 = 11,861.33 : x
  2. Step 2: Convert to fraction form
    19,242.45/28,881.90 = 11,861.33/x
  3. Step 3: Cross multiply
    19,242.45x = 28,881.90 × 11,861.33
  4. Step 4: Simplify right side
    19,242.45x = 342,577,602.52
  5. Step 5: Solve for x
    x = 342,577,602.52/19,242.45
  6. Step 6: Final answer
    x = 17,803.22

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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.