Home / 20,289.48-30,260.68-19,584.06

Finding the Fourth Proportional to 20,289.48, 30,260.68 and 19,584.06

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Solution

The fourth proportional to 20,289.48, 30,260.68 and 19,584.06 is: 29,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.48 : 30,260.68 = 19,584.06 : x
  2. Step 2: Convert to fraction form
    20,289.48/30,260.68 = 19,584.06/x
  3. Step 3: Cross multiply
    20,289.48x = 30,260.68 × 19,584.06
  4. Step 4: Simplify right side
    20,289.48x = 592,626,972.76
  5. Step 5: Solve for x
    x = 592,626,972.76/20,289.48
  6. Step 6: Final answer
    x = 29,208.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.