Home / 15,445.51-21,404.50-15,150.13

Finding the Fourth Proportional to 15,445.51, 21,404.50 and 15,150.13

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Solution

The fourth proportional to 15,445.51, 21,404.50 and 15,150.13 is: 20,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.51 : 21,404.50 = 15,150.13 : x
  2. Step 2: Convert to fraction form
    15,445.51/21,404.50 = 15,150.13/x
  3. Step 3: Cross multiply
    15,445.51x = 21,404.50 × 15,150.13
  4. Step 4: Simplify right side
    15,445.51x = 324,280,957.59
  5. Step 5: Solve for x
    x = 324,280,957.59/15,445.51
  6. Step 6: Final answer
    x = 20,995.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.