Home / 26,853.44-37,070.40-20,870.72

Finding the Fourth Proportional to 26,853.44, 37,070.40 and 20,870.72

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Solution

The fourth proportional to 26,853.44, 37,070.40 and 20,870.72 is: 28,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,853.44 : 37,070.40 = 20,870.72 : x
  2. Step 2: Convert to fraction form
    26,853.44/37,070.40 = 20,870.72/x
  3. Step 3: Cross multiply
    26,853.44x = 37,070.40 × 20,870.72
  4. Step 4: Simplify right side
    26,853.44x = 773,685,938.69
  5. Step 5: Solve for x
    x = 773,685,938.69/26,853.44
  6. Step 6: Final answer
    x = 28,811.43

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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.