Home / 30,558.96-42,167.64-17,127.34

Finding the Fourth Proportional to 30,558.96, 42,167.64 and 17,127.34

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Solution

The fourth proportional to 30,558.96, 42,167.64 and 17,127.34 is: 23,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.96 : 42,167.64 = 17,127.34 : x
  2. Step 2: Convert to fraction form
    30,558.96/42,167.64 = 17,127.34/x
  3. Step 3: Cross multiply
    30,558.96x = 42,167.64 × 17,127.34
  4. Step 4: Simplify right side
    30,558.96x = 722,219,507.28
  5. Step 5: Solve for x
    x = 722,219,507.28/30,558.96
  6. Step 6: Final answer
    x = 23,633.64

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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.