Home / 30,700.92-42,366.81-17,272.19

Finding the Fourth Proportional to 30,700.92, 42,366.81 and 17,272.19

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Solution

The fourth proportional to 30,700.92, 42,366.81 and 17,272.19 is: 23,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700.92 : 42,366.81 = 17,272.19 : x
  2. Step 2: Convert to fraction form
    30,700.92/42,366.81 = 17,272.19/x
  3. Step 3: Cross multiply
    30,700.92x = 42,366.81 × 17,272.19
  4. Step 4: Simplify right side
    30,700.92x = 731,767,762.70
  5. Step 5: Solve for x
    x = 731,767,762.70/30,700.92
  6. Step 6: Final answer
    x = 23,835.37

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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.