Home / 20,482.35-28,265.81-11,533.07

Finding the Fourth Proportional to 20,482.35, 28,265.81 and 11,533.07

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Solution

The fourth proportional to 20,482.35, 28,265.81 and 11,533.07 is: 15,915.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.35 : 28,265.81 = 11,533.07 : x
  2. Step 2: Convert to fraction form
    20,482.35/28,265.81 = 11,533.07/x
  3. Step 3: Cross multiply
    20,482.35x = 28,265.81 × 11,533.07
  4. Step 4: Simplify right side
    20,482.35x = 325,991,366.34
  5. Step 5: Solve for x
    x = 325,991,366.34/20,482.35
  6. Step 6: Final answer
    x = 15,915.72

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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.