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Finding the Fourth Proportional to 35,478.88, 53,218.32 and 14,430.37

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Solution

The fourth proportional to 35,478.88, 53,218.32 and 14,430.37 is: 21,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.88 : 53,218.32 = 14,430.37 : x
  2. Step 2: Convert to fraction form
    35,478.88/53,218.32 = 14,430.37/x
  3. Step 3: Cross multiply
    35,478.88x = 53,218.32 × 14,430.37
  4. Step 4: Simplify right side
    35,478.88x = 767,959,710.13
  5. Step 5: Solve for x
    x = 767,959,710.13/35,478.88
  6. Step 6: Final answer
    x = 21,645.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.