Home / 21,897.61-30,218.74-12,466.18

Finding the Fourth Proportional to 21,897.61, 30,218.74 and 12,466.18

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Solution

The fourth proportional to 21,897.61, 30,218.74 and 12,466.18 is: 17,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.61 : 30,218.74 = 12,466.18 : x
  2. Step 2: Convert to fraction form
    21,897.61/30,218.74 = 12,466.18/x
  3. Step 3: Cross multiply
    21,897.61x = 30,218.74 × 12,466.18
  4. Step 4: Simplify right side
    21,897.61x = 376,712,252.21
  5. Step 5: Solve for x
    x = 376,712,252.21/21,897.61
  6. Step 6: Final answer
    x = 17,203.35

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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.