Home / 20,674.89-28,533.75-11,602.74

Finding the Fourth Proportional to 20,674.89, 28,533.75 and 11,602.74

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Solution

The fourth proportional to 20,674.89, 28,533.75 and 11,602.74 is: 16,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.89 : 28,533.75 = 11,602.74 : x
  2. Step 2: Convert to fraction form
    20,674.89/28,533.75 = 11,602.74/x
  3. Step 3: Cross multiply
    20,674.89x = 28,533.75 × 11,602.74
  4. Step 4: Simplify right side
    20,674.89x = 331,069,682.48
  5. Step 5: Solve for x
    x = 331,069,682.48/20,674.89
  6. Step 6: Final answer
    x = 16,013.13

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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.