Home / 21,948.57-30,289.55-12,516.93

Finding the Fourth Proportional to 21,948.57, 30,289.55 and 12,516.93

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Solution

The fourth proportional to 21,948.57, 30,289.55 and 12,516.93 is: 17,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.57 : 30,289.55 = 12,516.93 : x
  2. Step 2: Convert to fraction form
    21,948.57/30,289.55 = 12,516.93/x
  3. Step 3: Cross multiply
    21,948.57x = 30,289.55 × 12,516.93
  4. Step 4: Simplify right side
    21,948.57x = 379,132,114.50
  5. Step 5: Solve for x
    x = 379,132,114.50/21,948.57
  6. Step 6: Final answer
    x = 17,273.66

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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.