Home / 30,849.26-42,572.79-17,420.81

Finding the Fourth Proportional to 30,849.26, 42,572.79 and 17,420.81

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Solution

The fourth proportional to 30,849.26, 42,572.79 and 17,420.81 is: 24,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,849.26 : 42,572.79 = 17,420.81 : x
  2. Step 2: Convert to fraction form
    30,849.26/42,572.79 = 17,420.81/x
  3. Step 3: Cross multiply
    30,849.26x = 42,572.79 × 17,420.81
  4. Step 4: Simplify right side
    30,849.26x = 741,652,272.90
  5. Step 5: Solve for x
    x = 741,652,272.90/30,849.26
  6. Step 6: Final answer
    x = 24,041.17

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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.