Home / 19,083.03-28,657.12-12,430.91

Finding the Fourth Proportional to 19,083.03, 28,657.12 and 12,430.91

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Solution

The fourth proportional to 19,083.03, 28,657.12 and 12,430.91 is: 18,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.03 : 28,657.12 = 12,430.91 : x
  2. Step 2: Convert to fraction form
    19,083.03/28,657.12 = 12,430.91/x
  3. Step 3: Cross multiply
    19,083.03x = 28,657.12 × 12,430.91
  4. Step 4: Simplify right side
    19,083.03x = 356,234,079.58
  5. Step 5: Solve for x
    x = 356,234,079.58/19,083.03
  6. Step 6: Final answer
    x = 18,667.58

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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.