Home / 30,536.58-42,140.18-17,108.40

Finding the Fourth Proportional to 30,536.58, 42,140.18 and 17,108.40

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Solution

The fourth proportional to 30,536.58, 42,140.18 and 17,108.40 is: 23,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,536.58 : 42,140.18 = 17,108.40 : x
  2. Step 2: Convert to fraction form
    30,536.58/42,140.18 = 17,108.40/x
  3. Step 3: Cross multiply
    30,536.58x = 42,140.18 × 17,108.40
  4. Step 4: Simplify right side
    30,536.58x = 720,951,055.51
  5. Step 5: Solve for x
    x = 720,951,055.51/30,536.58
  6. Step 6: Final answer
    x = 23,609.42

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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.