Home / 20,106.17-27,742.50-12,148.83

Finding the Fourth Proportional to 20,106.17, 27,742.50 and 12,148.83

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Solution

The fourth proportional to 20,106.17, 27,742.50 and 12,148.83 is: 16,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.17 : 27,742.50 = 12,148.83 : x
  2. Step 2: Convert to fraction form
    20,106.17/27,742.50 = 12,148.83/x
  3. Step 3: Cross multiply
    20,106.17x = 27,742.50 × 12,148.83
  4. Step 4: Simplify right side
    20,106.17x = 337,038,916.28
  5. Step 5: Solve for x
    x = 337,038,916.28/20,106.17
  6. Step 6: Final answer
    x = 16,762.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.