Home / 35,478.58-53,211.18-13,287.21

Finding the Fourth Proportional to 35,478.58, 53,211.18 and 13,287.21

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Solution

The fourth proportional to 35,478.58, 53,211.18 and 13,287.21 is: 19,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.58 : 53,211.18 = 13,287.21 : x
  2. Step 2: Convert to fraction form
    35,478.58/53,211.18 = 13,287.21/x
  3. Step 3: Cross multiply
    35,478.58x = 53,211.18 × 13,287.21
  4. Step 4: Simplify right side
    35,478.58x = 707,028,172.83
  5. Step 5: Solve for x
    x = 707,028,172.83/35,478.58
  6. Step 6: Final answer
    x = 19,928.31

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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.