Home / 20,303.15-30,458.01-6,259.89

Finding the Fourth Proportional to 20,303.15, 30,458.01 and 6,259.89

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Solution

The fourth proportional to 20,303.15, 30,458.01 and 6,259.89 is: 9,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.15 : 30,458.01 = 6,259.89 : x
  2. Step 2: Convert to fraction form
    20,303.15/30,458.01 = 6,259.89/x
  3. Step 3: Cross multiply
    20,303.15x = 30,458.01 × 6,259.89
  4. Step 4: Simplify right side
    20,303.15x = 190,663,792.22
  5. Step 5: Solve for x
    x = 190,663,792.22/20,303.15
  6. Step 6: Final answer
    x = 9,390.85

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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.