Home / 35,419.40-53,097.48-13,215.68

Finding the Fourth Proportional to 35,419.40, 53,097.48 and 13,215.68

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Solution

The fourth proportional to 35,419.40, 53,097.48 and 13,215.68 is: 19,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.40 : 53,097.48 = 13,215.68 : x
  2. Step 2: Convert to fraction form
    35,419.40/53,097.48 = 13,215.68/x
  3. Step 3: Cross multiply
    35,419.40x = 53,097.48 × 13,215.68
  4. Step 4: Simplify right side
    35,419.40x = 701,719,304.49
  5. Step 5: Solve for x
    x = 701,719,304.49/35,419.40
  6. Step 6: Final answer
    x = 19,811.72

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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.