Home / 23,579.77-32,540.77-12,970.09

Finding the Fourth Proportional to 23,579.77, 32,540.77 and 12,970.09

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Solution

The fourth proportional to 23,579.77, 32,540.77 and 12,970.09 is: 17,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,579.77 : 32,540.77 = 12,970.09 : x
  2. Step 2: Convert to fraction form
    23,579.77/32,540.77 = 12,970.09/x
  3. Step 3: Cross multiply
    23,579.77x = 32,540.77 × 12,970.09
  4. Step 4: Simplify right side
    23,579.77x = 422,056,715.57
  5. Step 5: Solve for x
    x = 422,056,715.57/23,579.77
  6. Step 6: Final answer
    x = 17,899.10

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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.