Home / 20,435.19-28,203.08-11,482.50

Finding the Fourth Proportional to 20,435.19, 28,203.08 and 11,482.50

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Solution

The fourth proportional to 20,435.19, 28,203.08 and 11,482.50 is: 15,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.19 : 28,203.08 = 11,482.50 : x
  2. Step 2: Convert to fraction form
    20,435.19/28,203.08 = 11,482.50/x
  3. Step 3: Cross multiply
    20,435.19x = 28,203.08 × 11,482.50
  4. Step 4: Simplify right side
    20,435.19x = 323,841,894.81
  5. Step 5: Solve for x
    x = 323,841,894.81/20,435.19
  6. Step 6: Final answer
    x = 15,847.27

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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.