Home / 30,990.17-46,491.24-13,220.53

Finding the Fourth Proportional to 30,990.17, 46,491.24 and 13,220.53

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Solution

The fourth proportional to 30,990.17, 46,491.24 and 13,220.53 is: 19,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.17 : 46,491.24 = 13,220.53 : x
  2. Step 2: Convert to fraction form
    30,990.17/46,491.24 = 13,220.53/x
  3. Step 3: Cross multiply
    30,990.17x = 46,491.24 × 13,220.53
  4. Step 4: Simplify right side
    30,990.17x = 614,638,766.51
  5. Step 5: Solve for x
    x = 614,638,766.51/30,990.17
  6. Step 6: Final answer
    x = 19,833.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.