Home / 19,312.95-28,962.13-8,917.41

Finding the Fourth Proportional to 19,312.95, 28,962.13 and 8,917.41

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Solution

The fourth proportional to 19,312.95, 28,962.13 and 8,917.41 is: 13,372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.95 : 28,962.13 = 8,917.41 : x
  2. Step 2: Convert to fraction form
    19,312.95/28,962.13 = 8,917.41/x
  3. Step 3: Cross multiply
    19,312.95x = 28,962.13 × 8,917.41
  4. Step 4: Simplify right side
    19,312.95x = 258,267,165.39
  5. Step 5: Solve for x
    x = 258,267,165.39/19,312.95
  6. Step 6: Final answer
    x = 13,372.75

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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.