Home / 20,526.18-28,325.57-11,573.61

Finding the Fourth Proportional to 20,526.18, 28,325.57 and 11,573.61

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Solution

The fourth proportional to 20,526.18, 28,325.57 and 11,573.61 is: 15,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.18 : 28,325.57 = 11,573.61 : x
  2. Step 2: Convert to fraction form
    20,526.18/28,325.57 = 11,573.61/x
  3. Step 3: Cross multiply
    20,526.18x = 28,325.57 × 11,573.61
  4. Step 4: Simplify right side
    20,526.18x = 327,829,042.34
  5. Step 5: Solve for x
    x = 327,829,042.34/20,526.18
  6. Step 6: Final answer
    x = 15,971.26

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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.