Home / 19,905.73-29,859.50-18,948.17

Finding the Fourth Proportional to 19,905.73, 29,859.50 and 18,948.17

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Solution

The fourth proportional to 19,905.73, 29,859.50 and 18,948.17 is: 28,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.73 : 29,859.50 = 18,948.17 : x
  2. Step 2: Convert to fraction form
    19,905.73/29,859.50 = 18,948.17/x
  3. Step 3: Cross multiply
    19,905.73x = 29,859.50 × 18,948.17
  4. Step 4: Simplify right side
    19,905.73x = 565,783,004.13
  5. Step 5: Solve for x
    x = 565,783,004.13/19,905.73
  6. Step 6: Final answer
    x = 28,423.13

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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.