Home / 20,582.04-28,392.78-13,015.62

Finding the Fourth Proportional to 20,582.04, 28,392.78 and 13,015.62

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Solution

The fourth proportional to 20,582.04, 28,392.78 and 13,015.62 is: 17,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.04 : 28,392.78 = 13,015.62 : x
  2. Step 2: Convert to fraction form
    20,582.04/28,392.78 = 13,015.62/x
  3. Step 3: Cross multiply
    20,582.04x = 28,392.78 × 13,015.62
  4. Step 4: Simplify right side
    20,582.04x = 369,549,635.22
  5. Step 5: Solve for x
    x = 369,549,635.22/20,582.04
  6. Step 6: Final answer
    x = 17,954.96

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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.