Home / 51,009.38-70,391.26-28,039.28

Finding the Fourth Proportional to 51,009.38, 70,391.26 and 28,039.28

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Solution

The fourth proportional to 51,009.38, 70,391.26 and 28,039.28 is: 38,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.38 : 70,391.26 = 28,039.28 : x
  2. Step 2: Convert to fraction form
    51,009.38/70,391.26 = 28,039.28/x
  3. Step 3: Cross multiply
    51,009.38x = 70,391.26 × 28,039.28
  4. Step 4: Simplify right side
    51,009.38x = 1,973,720,394.43
  5. Step 5: Solve for x
    x = 1,973,720,394.43/51,009.38
  6. Step 6: Final answer
    x = 38,693.28

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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.