Home / 42,708.19-64,055.70-14,621.80

Finding the Fourth Proportional to 42,708.19, 64,055.70 and 14,621.80

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Solution

The fourth proportional to 42,708.19, 64,055.70 and 14,621.80 is: 21,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,708.19 : 64,055.70 = 14,621.80 : x
  2. Step 2: Convert to fraction form
    42,708.19/64,055.70 = 14,621.80/x
  3. Step 3: Cross multiply
    42,708.19x = 64,055.70 × 14,621.80
  4. Step 4: Simplify right side
    42,708.19x = 936,609,634.26
  5. Step 5: Solve for x
    x = 936,609,634.26/42,708.19
  6. Step 6: Final answer
    x = 21,930.45

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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.