Home / 15,968.91-21,877.51-15,370.34

Finding the Fourth Proportional to 15,968.91, 21,877.51 and 15,370.34

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Solution

The fourth proportional to 15,968.91, 21,877.51 and 15,370.34 is: 21,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,968.91 : 21,877.51 = 15,370.34 : x
  2. Step 2: Convert to fraction form
    15,968.91/21,877.51 = 15,370.34/x
  3. Step 3: Cross multiply
    15,968.91x = 21,877.51 × 15,370.34
  4. Step 4: Simplify right side
    15,968.91x = 336,264,690.20
  5. Step 5: Solve for x
    x = 336,264,690.20/15,968.91
  6. Step 6: Final answer
    x = 21,057.47

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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.