Home / 40,897.06-61,345.61-12,819.30

Finding the Fourth Proportional to 40,897.06, 61,345.61 and 12,819.30

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Solution

The fourth proportional to 40,897.06, 61,345.61 and 12,819.30 is: 19,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,897.06 : 61,345.61 = 12,819.30 : x
  2. Step 2: Convert to fraction form
    40,897.06/61,345.61 = 12,819.30/x
  3. Step 3: Cross multiply
    40,897.06x = 61,345.61 × 12,819.30
  4. Step 4: Simplify right side
    40,897.06x = 786,407,778.27
  5. Step 5: Solve for x
    x = 786,407,778.27/40,897.06
  6. Step 6: Final answer
    x = 19,228.96

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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.