Home / 28,261.86-42,392.76-7,485.36

Finding the Fourth Proportional to 28,261.86, 42,392.76 and 7,485.36

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Solution

The fourth proportional to 28,261.86, 42,392.76 and 7,485.36 is: 11,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.86 : 42,392.76 = 7,485.36 : x
  2. Step 2: Convert to fraction form
    28,261.86/42,392.76 = 7,485.36/x
  3. Step 3: Cross multiply
    28,261.86x = 42,392.76 × 7,485.36
  4. Step 4: Simplify right side
    28,261.86x = 317,325,069.99
  5. Step 5: Solve for x
    x = 317,325,069.99/28,261.86
  6. Step 6: Final answer
    x = 11,228.03

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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.