Home / 25,430.77-38,133.85-8,784.97

Finding the Fourth Proportional to 25,430.77, 38,133.85 and 8,784.97

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Solution

The fourth proportional to 25,430.77, 38,133.85 and 8,784.97 is: 13,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.77 : 38,133.85 = 8,784.97 : x
  2. Step 2: Convert to fraction form
    25,430.77/38,133.85 = 8,784.97/x
  3. Step 3: Cross multiply
    25,430.77x = 38,133.85 × 8,784.97
  4. Step 4: Simplify right side
    25,430.77x = 335,004,728.23
  5. Step 5: Solve for x
    x = 335,004,728.23/25,430.77
  6. Step 6: Final answer
    x = 13,173.20

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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.