Home / 20,360.09-28,084.51-13,461.23

Finding the Fourth Proportional to 20,360.09, 28,084.51 and 13,461.23

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Solution

The fourth proportional to 20,360.09, 28,084.51 and 13,461.23 is: 18,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.09 : 28,084.51 = 13,461.23 : x
  2. Step 2: Convert to fraction form
    20,360.09/28,084.51 = 13,461.23/x
  3. Step 3: Cross multiply
    20,360.09x = 28,084.51 × 13,461.23
  4. Step 4: Simplify right side
    20,360.09x = 378,051,981.24
  5. Step 5: Solve for x
    x = 378,051,981.24/20,360.09
  6. Step 6: Final answer
    x = 18,568.29

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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.