Home / 30,619.74-42,254.93-17,190.69

Finding the Fourth Proportional to 30,619.74, 42,254.93 and 17,190.69

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Solution

The fourth proportional to 30,619.74, 42,254.93 and 17,190.69 is: 23,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.74 : 42,254.93 = 17,190.69 : x
  2. Step 2: Convert to fraction form
    30,619.74/42,254.93 = 17,190.69/x
  3. Step 3: Cross multiply
    30,619.74x = 42,254.93 × 17,190.69
  4. Step 4: Simplify right side
    30,619.74x = 726,391,402.60
  5. Step 5: Solve for x
    x = 726,391,402.60/30,619.74
  6. Step 6: Final answer
    x = 23,722.98

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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.