Home / 30,109.78-45,148.38-23,909.68

Finding the Fourth Proportional to 30,109.78, 45,148.38 and 23,909.68

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Solution

The fourth proportional to 30,109.78, 45,148.38 and 23,909.68 is: 35,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.78 : 45,148.38 = 23,909.68 : x
  2. Step 2: Convert to fraction form
    30,109.78/45,148.38 = 23,909.68/x
  3. Step 3: Cross multiply
    30,109.78x = 45,148.38 × 23,909.68
  4. Step 4: Simplify right side
    30,109.78x = 1,079,483,318.32
  5. Step 5: Solve for x
    x = 1,079,483,318.32/30,109.78
  6. Step 6: Final answer
    x = 35,851.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.