Home / 30,419.13-41,975.66-16,988.52

Finding the Fourth Proportional to 30,419.13, 41,975.66 and 16,988.52

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Solution

The fourth proportional to 30,419.13, 41,975.66 and 16,988.52 is: 23,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.13 : 41,975.66 = 16,988.52 : x
  2. Step 2: Convert to fraction form
    30,419.13/41,975.66 = 16,988.52/x
  3. Step 3: Cross multiply
    30,419.13x = 41,975.66 × 16,988.52
  4. Step 4: Simplify right side
    30,419.13x = 713,104,381.89
  5. Step 5: Solve for x
    x = 713,104,381.89/30,419.13
  6. Step 6: Final answer
    x = 23,442.63

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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.