Home / 20,582.40-28,409.13-14,210.03

Finding the Fourth Proportional to 20,582.40, 28,409.13 and 14,210.03

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Solution

The fourth proportional to 20,582.40, 28,409.13 and 14,210.03 is: 19,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.40 : 28,409.13 = 14,210.03 : x
  2. Step 2: Convert to fraction form
    20,582.40/28,409.13 = 14,210.03/x
  3. Step 3: Cross multiply
    20,582.40x = 28,409.13 × 14,210.03
  4. Step 4: Simplify right side
    20,582.40x = 403,694,660.60
  5. Step 5: Solve for x
    x = 403,694,660.60/20,582.40
  6. Step 6: Final answer
    x = 19,613.58

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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.