Home / 35,478.62-53,189.06-13,279.55

Finding the Fourth Proportional to 35,478.62, 53,189.06 and 13,279.55

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Solution

The fourth proportional to 35,478.62, 53,189.06 and 13,279.55 is: 19,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.62 : 53,189.06 = 13,279.55 : x
  2. Step 2: Convert to fraction form
    35,478.62/53,189.06 = 13,279.55/x
  3. Step 3: Cross multiply
    35,478.62x = 53,189.06 × 13,279.55
  4. Step 4: Simplify right side
    35,478.62x = 706,326,947.89
  5. Step 5: Solve for x
    x = 706,326,947.89/35,478.62
  6. Step 6: Final answer
    x = 19,908.53

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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.