Home / 21,898.58-30,222.45-12,465.62

Finding the Fourth Proportional to 21,898.58, 30,222.45 and 12,465.62

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Solution

The fourth proportional to 21,898.58, 30,222.45 and 12,465.62 is: 17,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.58 : 30,222.45 = 12,465.62 : x
  2. Step 2: Convert to fraction form
    21,898.58/30,222.45 = 12,465.62/x
  3. Step 3: Cross multiply
    21,898.58x = 30,222.45 × 12,465.62
  4. Step 4: Simplify right side
    21,898.58x = 376,741,577.17
  5. Step 5: Solve for x
    x = 376,741,577.17/21,898.58
  6. Step 6: Final answer
    x = 17,203.93

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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.