Home / 28,985.13-43,485.26-8,208.63

Finding the Fourth Proportional to 28,985.13, 43,485.26 and 8,208.63

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Solution

The fourth proportional to 28,985.13, 43,485.26 and 8,208.63 is: 12,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.13 : 43,485.26 = 8,208.63 : x
  2. Step 2: Convert to fraction form
    28,985.13/43,485.26 = 8,208.63/x
  3. Step 3: Cross multiply
    28,985.13x = 43,485.26 × 8,208.63
  4. Step 4: Simplify right side
    28,985.13x = 356,954,368.75
  5. Step 5: Solve for x
    x = 356,954,368.75/28,985.13
  6. Step 6: Final answer
    x = 12,315.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.