Home / 28,027.09-42,026.80-12,225.28

Finding the Fourth Proportional to 28,027.09, 42,026.80 and 12,225.28

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Solution

The fourth proportional to 28,027.09, 42,026.80 and 12,225.28 is: 18,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.09 : 42,026.80 = 12,225.28 : x
  2. Step 2: Convert to fraction form
    28,027.09/42,026.80 = 12,225.28/x
  3. Step 3: Cross multiply
    28,027.09x = 42,026.80 × 12,225.28
  4. Step 4: Simplify right side
    28,027.09x = 513,789,363.60
  5. Step 5: Solve for x
    x = 513,789,363.60/28,027.09
  6. Step 6: Final answer
    x = 18,331.89

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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.