Home / 58,003.20-86,993.82-20,561.76

Finding the Fourth Proportional to 58,003.20, 86,993.82 and 20,561.76

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Solution

The fourth proportional to 58,003.20, 86,993.82 and 20,561.76 is: 30,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,003.20 : 86,993.82 = 20,561.76 : x
  2. Step 2: Convert to fraction form
    58,003.20/86,993.82 = 20,561.76/x
  3. Step 3: Cross multiply
    58,003.20x = 86,993.82 × 20,561.76
  4. Step 4: Simplify right side
    58,003.20x = 1,788,746,048.32
  5. Step 5: Solve for x
    x = 1,788,746,048.32/58,003.20
  6. Step 6: Final answer
    x = 30,838.75

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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.