Home / 35,478.82-53,225.43-13,291.78

Finding the Fourth Proportional to 35,478.82, 53,225.43 and 13,291.78

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Solution

The fourth proportional to 35,478.82, 53,225.43 and 13,291.78 is: 19,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.82 : 53,225.43 = 13,291.78 : x
  2. Step 2: Convert to fraction form
    35,478.82/53,225.43 = 13,291.78/x
  3. Step 3: Cross multiply
    35,478.82x = 53,225.43 × 13,291.78
  4. Step 4: Simplify right side
    35,478.82x = 707,460,705.97
  5. Step 5: Solve for x
    x = 707,460,705.97/35,478.82
  6. Step 6: Final answer
    x = 19,940.37

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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.