Home / 19,776.56-29,662.63-4,985.47

Finding the Fourth Proportional to 19,776.56, 29,662.63 and 4,985.47

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Solution

The fourth proportional to 19,776.56, 29,662.63 and 4,985.47 is: 7,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.56 : 29,662.63 = 4,985.47 : x
  2. Step 2: Convert to fraction form
    19,776.56/29,662.63 = 4,985.47/x
  3. Step 3: Cross multiply
    19,776.56x = 29,662.63 × 4,985.47
  4. Step 4: Simplify right side
    19,776.56x = 147,882,151.99
  5. Step 5: Solve for x
    x = 147,882,151.99/19,776.56
  6. Step 6: Final answer
    x = 7,477.65

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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.