Home / 21,715.83-29,968.48-12,025.40

Finding the Fourth Proportional to 21,715.83, 29,968.48 and 12,025.40

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Solution

The fourth proportional to 21,715.83, 29,968.48 and 12,025.40 is: 16,595.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.83 : 29,968.48 = 12,025.40 : x
  2. Step 2: Convert to fraction form
    21,715.83/29,968.48 = 12,025.40/x
  3. Step 3: Cross multiply
    21,715.83x = 29,968.48 × 12,025.40
  4. Step 4: Simplify right side
    21,715.83x = 360,382,824.58
  5. Step 5: Solve for x
    x = 360,382,824.58/21,715.83
  6. Step 6: Final answer
    x = 16,595.40

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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.