Home / 51,022.32-70,415.16-28,365.72

Finding the Fourth Proportional to 51,022.32, 70,415.16 and 28,365.72

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Solution

The fourth proportional to 51,022.32, 70,415.16 and 28,365.72 is: 39,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,022.32 : 70,415.16 = 28,365.72 : x
  2. Step 2: Convert to fraction form
    51,022.32/70,415.16 = 28,365.72/x
  3. Step 3: Cross multiply
    51,022.32x = 70,415.16 × 28,365.72
  4. Step 4: Simplify right side
    51,022.32x = 1,997,376,712.32
  5. Step 5: Solve for x
    x = 1,997,376,712.32/51,022.32
  6. Step 6: Final answer
    x = 39,147.12

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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.