Home / 35,605.48-53,440.32-18,979.36

Finding the Fourth Proportional to 35,605.48, 53,440.32 and 18,979.36

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Solution

The fourth proportional to 35,605.48, 53,440.32 and 18,979.36 is: 28,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.48 : 53,440.32 = 18,979.36 : x
  2. Step 2: Convert to fraction form
    35,605.48/53,440.32 = 18,979.36/x
  3. Step 3: Cross multiply
    35,605.48x = 53,440.32 × 18,979.36
  4. Step 4: Simplify right side
    35,605.48x = 1,014,263,071.80
  5. Step 5: Solve for x
    x = 1,014,263,071.80/35,605.48
  6. Step 6: Final answer
    x = 28,486.15

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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.