Home / 21,966.18-30,312.95-11,894.53

Finding the Fourth Proportional to 21,966.18, 30,312.95 and 11,894.53

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Solution

The fourth proportional to 21,966.18, 30,312.95 and 11,894.53 is: 16,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.18 : 30,312.95 = 11,894.53 : x
  2. Step 2: Convert to fraction form
    21,966.18/30,312.95 = 11,894.53/x
  3. Step 3: Cross multiply
    21,966.18x = 30,312.95 × 11,894.53
  4. Step 4: Simplify right side
    21,966.18x = 360,558,293.16
  5. Step 5: Solve for x
    x = 360,558,293.16/21,966.18
  6. Step 6: Final answer
    x = 16,414.25

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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.