Home / 40,837.70-61,256.55-13,135.70

Finding the Fourth Proportional to 40,837.70, 61,256.55 and 13,135.70

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Solution

The fourth proportional to 40,837.70, 61,256.55 and 13,135.70 is: 19,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.70 : 61,256.55 = 13,135.70 : x
  2. Step 2: Convert to fraction form
    40,837.70/61,256.55 = 13,135.70/x
  3. Step 3: Cross multiply
    40,837.70x = 61,256.55 × 13,135.70
  4. Step 4: Simplify right side
    40,837.70x = 804,647,663.84
  5. Step 5: Solve for x
    x = 804,647,663.84/40,837.70
  6. Step 6: Final answer
    x = 19,703.55

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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.