Home / 15,969.16-21,877.85-15,370.59

Finding the Fourth Proportional to 15,969.16, 21,877.85 and 15,370.59

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Solution

The fourth proportional to 15,969.16, 21,877.85 and 15,370.59 is: 21,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.16 : 21,877.85 = 15,370.59 : x
  2. Step 2: Convert to fraction form
    15,969.16/21,877.85 = 15,370.59/x
  3. Step 3: Cross multiply
    15,969.16x = 21,877.85 × 15,370.59
  4. Step 4: Simplify right side
    15,969.16x = 336,275,424.01
  5. Step 5: Solve for x
    x = 336,275,424.01/15,969.16
  6. Step 6: Final answer
    x = 21,057.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.