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Finding the Fourth Proportional to 42,364, 63,550.32 and 14,661.92

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Solution

The fourth proportional to 42,364, 63,550.32 and 14,661.92 is: 21,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,364 : 63,550.32 = 14,661.92 : x
  2. Step 2: Convert to fraction form
    42,364/63,550.32 = 14,661.92/x
  3. Step 3: Cross multiply
    42,364x = 63,550.32 × 14,661.92
  4. Step 4: Simplify right side
    42,364x = 931,769,707.81
  5. Step 5: Solve for x
    x = 931,769,707.81/42,364
  6. Step 6: Final answer
    x = 21,994.38

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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.