Home / 20,582.34-28,393.20-13,015.92

Finding the Fourth Proportional to 20,582.34, 28,393.20 and 13,015.92

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Solution

The fourth proportional to 20,582.34, 28,393.20 and 13,015.92 is: 17,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.34 : 28,393.20 = 13,015.92 : x
  2. Step 2: Convert to fraction form
    20,582.34/28,393.20 = 13,015.92/x
  3. Step 3: Cross multiply
    20,582.34x = 28,393.20 × 13,015.92
  4. Step 4: Simplify right side
    20,582.34x = 369,563,619.74
  5. Step 5: Solve for x
    x = 369,563,619.74/20,582.34
  6. Step 6: Final answer
    x = 17,955.37

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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.