Home / 30,917.85-42,667.40-17,488.47

Finding the Fourth Proportional to 30,917.85, 42,667.40 and 17,488.47

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Solution

The fourth proportional to 30,917.85, 42,667.40 and 17,488.47 is: 24,134.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.85 : 42,667.40 = 17,488.47 : x
  2. Step 2: Convert to fraction form
    30,917.85/42,667.40 = 17,488.47/x
  3. Step 3: Cross multiply
    30,917.85x = 42,667.40 × 17,488.47
  4. Step 4: Simplify right side
    30,917.85x = 746,187,457.44
  5. Step 5: Solve for x
    x = 746,187,457.44/30,917.85
  6. Step 6: Final answer
    x = 24,134.52

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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.