Home / 30,462.96-42,021.36-17,885.28

Finding the Fourth Proportional to 30,462.96, 42,021.36 and 17,885.28

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Solution

The fourth proportional to 30,462.96, 42,021.36 and 17,885.28 is: 24,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,462.96 : 42,021.36 = 17,885.28 : x
  2. Step 2: Convert to fraction form
    30,462.96/42,021.36 = 17,885.28/x
  3. Step 3: Cross multiply
    30,462.96x = 42,021.36 × 17,885.28
  4. Step 4: Simplify right side
    30,462.96x = 751,563,789.58
  5. Step 5: Solve for x
    x = 751,563,789.58/30,462.96
  6. Step 6: Final answer
    x = 24,671.40

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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.