Home / 30,294.86-45,427.19-19,193.09

Finding the Fourth Proportional to 30,294.86, 45,427.19 and 19,193.09

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Solution

The fourth proportional to 30,294.86, 45,427.19 and 19,193.09 is: 28,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,294.86 : 45,427.19 = 19,193.09 : x
  2. Step 2: Convert to fraction form
    30,294.86/45,427.19 = 19,193.09/x
  3. Step 3: Cross multiply
    30,294.86x = 45,427.19 × 19,193.09
  4. Step 4: Simplify right side
    30,294.86x = 871,887,823.02
  5. Step 5: Solve for x
    x = 871,887,823.02/30,294.86
  6. Step 6: Final answer
    x = 28,780.06

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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.