Home / 30,128.13-41,576.85-16,699.59

Finding the Fourth Proportional to 30,128.13, 41,576.85 and 16,699.59

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Solution

The fourth proportional to 30,128.13, 41,576.85 and 16,699.59 is: 23,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.13 : 41,576.85 = 16,699.59 : x
  2. Step 2: Convert to fraction form
    30,128.13/41,576.85 = 16,699.59/x
  3. Step 3: Cross multiply
    30,128.13x = 41,576.85 × 16,699.59
  4. Step 4: Simplify right side
    30,128.13x = 694,316,348.49
  5. Step 5: Solve for x
    x = 694,316,348.49/30,128.13
  6. Step 6: Final answer
    x = 23,045.45

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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.