Home / 20,526.16-28,329.04-14,879.60

Finding the Fourth Proportional to 20,526.16, 28,329.04 and 14,879.60

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Solution

The fourth proportional to 20,526.16, 28,329.04 and 14,879.60 is: 20,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.16 : 28,329.04 = 14,879.60 : x
  2. Step 2: Convert to fraction form
    20,526.16/28,329.04 = 14,879.60/x
  3. Step 3: Cross multiply
    20,526.16x = 28,329.04 × 14,879.60
  4. Step 4: Simplify right side
    20,526.16x = 421,524,783.58
  5. Step 5: Solve for x
    x = 421,524,783.58/20,526.16
  6. Step 6: Final answer
    x = 20,535.98

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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.