Home / 21,897.42-30,218.48-12,465.99

Finding the Fourth Proportional to 21,897.42, 30,218.48 and 12,465.99

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Solution

The fourth proportional to 21,897.42, 30,218.48 and 12,465.99 is: 17,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.42 : 30,218.48 = 12,465.99 : x
  2. Step 2: Convert to fraction form
    21,897.42/30,218.48 = 12,465.99/x
  3. Step 3: Cross multiply
    21,897.42x = 30,218.48 × 12,465.99
  4. Step 4: Simplify right side
    21,897.42x = 376,703,140.59
  5. Step 5: Solve for x
    x = 376,703,140.59/21,897.42
  6. Step 6: Final answer
    x = 17,203.08

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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.