Home / 30,320.64-41,850-19,000.08

Finding the Fourth Proportional to 30,320.64, 41,850 and 19,000.08

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Solution

The fourth proportional to 30,320.64, 41,850 and 19,000.08 is: 26,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.64 : 41,850 = 19,000.08 : x
  2. Step 2: Convert to fraction form
    30,320.64/41,850 = 19,000.08/x
  3. Step 3: Cross multiply
    30,320.64x = 41,850 × 19,000.08
  4. Step 4: Simplify right side
    30,320.64x = 795,153,348.00
  5. Step 5: Solve for x
    x = 795,153,348.00/30,320.64
  6. Step 6: Final answer
    x = 26,224.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.