Home / 30,221.91-45,331.52-10,501.99

Finding the Fourth Proportional to 30,221.91, 45,331.52 and 10,501.99

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Solution

The fourth proportional to 30,221.91, 45,331.52 and 10,501.99 is: 15,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.91 : 45,331.52 = 10,501.99 : x
  2. Step 2: Convert to fraction form
    30,221.91/45,331.52 = 10,501.99/x
  3. Step 3: Cross multiply
    30,221.91x = 45,331.52 × 10,501.99
  4. Step 4: Simplify right side
    30,221.91x = 476,071,003.89
  5. Step 5: Solve for x
    x = 476,071,003.89/30,221.91
  6. Step 6: Final answer
    x = 15,752.51

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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.