Home / 20,324,288.72-28,046,792.76-11,503,550.72

Finding the Fourth Proportional to 20,324,288.72, 28,046,792.76 and 11,503,550.72

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Solution

The fourth proportional to 20,324,288.72, 28,046,792.76 and 11,503,550.72 is: 15,874,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324,288.72 : 28,046,792.76 = 11,503,550.72 : x
  2. Step 2: Convert to fraction form
    20,324,288.72/28,046,792.76 = 11,503,550.72/x
  3. Step 3: Cross multiply
    20,324,288.72x = 28,046,792.76 × 11,503,550.72
  4. Step 4: Simplify right side
    20,324,288.72x = 322,637,703,047,988.81
  5. Step 5: Solve for x
    x = 322,637,703,047,988.81/20,324,288.72
  6. Step 6: Final answer
    x = 15,874,489.26

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1.5x scale

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.