Home / 30,148.88-41,605.56-16,720.36

Finding the Fourth Proportional to 30,148.88, 41,605.56 and 16,720.36

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Solution

The fourth proportional to 30,148.88, 41,605.56 and 16,720.36 is: 23,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.88 : 41,605.56 = 16,720.36 : x
  2. Step 2: Convert to fraction form
    30,148.88/41,605.56 = 16,720.36/x
  3. Step 3: Cross multiply
    30,148.88x = 41,605.56 × 16,720.36
  4. Step 4: Simplify right side
    30,148.88x = 695,659,941.20
  5. Step 5: Solve for x
    x = 695,659,941.20/30,148.88
  6. Step 6: Final answer
    x = 23,074.16

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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.