Home / 19,290.96-28,946.16-8,910

Finding the Fourth Proportional to 19,290.96, 28,946.16 and 8,910

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Solution

The fourth proportional to 19,290.96, 28,946.16 and 8,910 is: 13,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.96 : 28,946.16 = 8,910 : x
  2. Step 2: Convert to fraction form
    19,290.96/28,946.16 = 8,910/x
  3. Step 3: Cross multiply
    19,290.96x = 28,946.16 × 8,910
  4. Step 4: Simplify right side
    19,290.96x = 257,910,285.60
  5. Step 5: Solve for x
    x = 257,910,285.60/19,290.96
  6. Step 6: Final answer
    x = 13,369.49

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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.