Home / 20,475.92-28,254.48-11,526.50

Finding the Fourth Proportional to 20,475.92, 28,254.48 and 11,526.50

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Solution

The fourth proportional to 20,475.92, 28,254.48 and 11,526.50 is: 15,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.92 : 28,254.48 = 11,526.50 : x
  2. Step 2: Convert to fraction form
    20,475.92/28,254.48 = 11,526.50/x
  3. Step 3: Cross multiply
    20,475.92x = 28,254.48 × 11,526.50
  4. Step 4: Simplify right side
    20,475.92x = 325,675,263.72
  5. Step 5: Solve for x
    x = 325,675,263.72/20,475.92
  6. Step 6: Final answer
    x = 15,905.28

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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.