Home / 30,407.26-41,928.90-19,777.18

Finding the Fourth Proportional to 30,407.26, 41,928.90 and 19,777.18

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Solution

The fourth proportional to 30,407.26, 41,928.90 and 19,777.18 is: 27,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.26 : 41,928.90 = 19,777.18 : x
  2. Step 2: Convert to fraction form
    30,407.26/41,928.90 = 19,777.18/x
  3. Step 3: Cross multiply
    30,407.26x = 41,928.90 × 19,777.18
  4. Step 4: Simplify right side
    30,407.26x = 829,235,402.50
  5. Step 5: Solve for x
    x = 829,235,402.50/30,407.26
  6. Step 6: Final answer
    x = 27,270.97

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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.