Home / 30,102.86-41,543.43-18,165.99

Finding the Fourth Proportional to 30,102.86, 41,543.43 and 18,165.99

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Solution

The fourth proportional to 30,102.86, 41,543.43 and 18,165.99 is: 25,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.86 : 41,543.43 = 18,165.99 : x
  2. Step 2: Convert to fraction form
    30,102.86/41,543.43 = 18,165.99/x
  3. Step 3: Cross multiply
    30,102.86x = 41,543.43 × 18,165.99
  4. Step 4: Simplify right side
    30,102.86x = 754,677,533.95
  5. Step 5: Solve for x
    x = 754,677,533.95/30,102.86
  6. Step 6: Final answer
    x = 25,069.97

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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.