Home / 30,186.70-41,657.79-18,862.77

Finding the Fourth Proportional to 30,186.70, 41,657.79 and 18,862.77

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Solution

The fourth proportional to 30,186.70, 41,657.79 and 18,862.77 is: 26,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.70 : 41,657.79 = 18,862.77 : x
  2. Step 2: Convert to fraction form
    30,186.70/41,657.79 = 18,862.77/x
  3. Step 3: Cross multiply
    30,186.70x = 41,657.79 × 18,862.77
  4. Step 4: Simplify right side
    30,186.70x = 785,781,538.43
  5. Step 5: Solve for x
    x = 785,781,538.43/30,186.70
  6. Step 6: Final answer
    x = 26,030.72

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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.