Home / 30,885.48-42,622.84-17,457.30

Finding the Fourth Proportional to 30,885.48, 42,622.84 and 17,457.30

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Solution

The fourth proportional to 30,885.48, 42,622.84 and 17,457.30 is: 24,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,885.48 : 42,622.84 = 17,457.30 : x
  2. Step 2: Convert to fraction form
    30,885.48/42,622.84 = 17,457.30/x
  3. Step 3: Cross multiply
    30,885.48x = 42,622.84 × 17,457.30
  4. Step 4: Simplify right side
    30,885.48x = 744,079,704.73
  5. Step 5: Solve for x
    x = 744,079,704.73/30,885.48
  6. Step 6: Final answer
    x = 24,091.57

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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.