Home / 20,011.77-30,009.33-7,525.35

Finding the Fourth Proportional to 20,011.77, 30,009.33 and 7,525.35

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Solution

The fourth proportional to 20,011.77, 30,009.33 and 7,525.35 is: 11,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.77 : 30,009.33 = 7,525.35 : x
  2. Step 2: Convert to fraction form
    20,011.77/30,009.33 = 7,525.35/x
  3. Step 3: Cross multiply
    20,011.77x = 30,009.33 × 7,525.35
  4. Step 4: Simplify right side
    20,011.77x = 225,830,711.52
  5. Step 5: Solve for x
    x = 225,830,711.52/20,011.77
  6. Step 6: Final answer
    x = 11,284.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.