Home / 30,450.40-42,023.36-17,877.12

Finding the Fourth Proportional to 30,450.40, 42,023.36 and 17,877.12

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Solution

The fourth proportional to 30,450.40, 42,023.36 and 17,877.12 is: 24,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.40 : 42,023.36 = 17,877.12 : x
  2. Step 2: Convert to fraction form
    30,450.40/42,023.36 = 17,877.12/x
  3. Step 3: Cross multiply
    30,450.40x = 42,023.36 × 17,877.12
  4. Step 4: Simplify right side
    30,450.40x = 751,256,649.52
  5. Step 5: Solve for x
    x = 751,256,649.52/30,450.40
  6. Step 6: Final answer
    x = 24,671.49

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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.