Home / 28,207.24-42,308.70-7,430.60

Finding the Fourth Proportional to 28,207.24, 42,308.70 and 7,430.60

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Solution

The fourth proportional to 28,207.24, 42,308.70 and 7,430.60 is: 11,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.24 : 42,308.70 = 7,430.60 : x
  2. Step 2: Convert to fraction form
    28,207.24/42,308.70 = 7,430.60/x
  3. Step 3: Cross multiply
    28,207.24x = 42,308.70 × 7,430.60
  4. Step 4: Simplify right side
    28,207.24x = 314,379,026.22
  5. Step 5: Solve for x
    x = 314,379,026.22/28,207.24
  6. Step 6: Final answer
    x = 11,145.33

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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.