Home / 58,338.20-87,521.16-18,895.28

Finding the Fourth Proportional to 58,338.20, 87,521.16 and 18,895.28

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Solution

The fourth proportional to 58,338.20, 87,521.16 and 18,895.28 is: 28,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,338.20 : 87,521.16 = 18,895.28 : x
  2. Step 2: Convert to fraction form
    58,338.20/87,521.16 = 18,895.28/x
  3. Step 3: Cross multiply
    58,338.20x = 87,521.16 × 18,895.28
  4. Step 4: Simplify right side
    58,338.20x = 1,653,736,824.12
  5. Step 5: Solve for x
    x = 1,653,736,824.12/58,338.20
  6. Step 6: Final answer
    x = 28,347.41

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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.