Home / 30,205.86-41,687.36-18,275.77

Finding the Fourth Proportional to 30,205.86, 41,687.36 and 18,275.77

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Solution

The fourth proportional to 30,205.86, 41,687.36 and 18,275.77 is: 25,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.86 : 41,687.36 = 18,275.77 : x
  2. Step 2: Convert to fraction form
    30,205.86/41,687.36 = 18,275.77/x
  3. Step 3: Cross multiply
    30,205.86x = 41,687.36 × 18,275.77
  4. Step 4: Simplify right side
    30,205.86x = 761,868,603.27
  5. Step 5: Solve for x
    x = 761,868,603.27/30,205.86
  6. Step 6: Final answer
    x = 25,222.54

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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.