Home / 21,952.10-30,293.96-11,880.53

Finding the Fourth Proportional to 21,952.10, 30,293.96 and 11,880.53

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Solution

The fourth proportional to 21,952.10, 30,293.96 and 11,880.53 is: 16,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952.10 : 30,293.96 = 11,880.53 : x
  2. Step 2: Convert to fraction form
    21,952.10/30,293.96 = 11,880.53/x
  3. Step 3: Cross multiply
    21,952.10x = 30,293.96 × 11,880.53
  4. Step 4: Simplify right side
    21,952.10x = 359,908,300.60
  5. Step 5: Solve for x
    x = 359,908,300.60/21,952.10
  6. Step 6: Final answer
    x = 16,395.16

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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.