Home / 30,571.08-42,152.08-28,303.89

Finding the Fourth Proportional to 30,571.08, 42,152.08 and 28,303.89

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Solution

The fourth proportional to 30,571.08, 42,152.08 and 28,303.89 is: 39,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.08 : 42,152.08 = 28,303.89 : x
  2. Step 2: Convert to fraction form
    30,571.08/42,152.08 = 28,303.89/x
  3. Step 3: Cross multiply
    30,571.08x = 42,152.08 × 28,303.89
  4. Step 4: Simplify right side
    30,571.08x = 1,193,067,835.59
  5. Step 5: Solve for x
    x = 1,193,067,835.59/30,571.08
  6. Step 6: Final answer
    x = 39,026.03

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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.