Home / 21,866.63-30,177.48-12,307.44

Finding the Fourth Proportional to 21,866.63, 30,177.48 and 12,307.44

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Solution

The fourth proportional to 21,866.63, 30,177.48 and 12,307.44 is: 16,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.63 : 30,177.48 = 12,307.44 : x
  2. Step 2: Convert to fraction form
    21,866.63/30,177.48 = 12,307.44/x
  3. Step 3: Cross multiply
    21,866.63x = 30,177.48 × 12,307.44
  4. Step 4: Simplify right side
    21,866.63x = 371,407,359.92
  5. Step 5: Solve for x
    x = 371,407,359.92/21,866.63
  6. Step 6: Final answer
    x = 16,985.12

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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.