Home / 42,400.54-63,602.16-21,329.07

Finding the Fourth Proportional to 42,400.54, 63,602.16 and 21,329.07

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Solution

The fourth proportional to 42,400.54, 63,602.16 and 21,329.07 is: 31,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.54 : 63,602.16 = 21,329.07 : x
  2. Step 2: Convert to fraction form
    42,400.54/63,602.16 = 21,329.07/x
  3. Step 3: Cross multiply
    42,400.54x = 63,602.16 × 21,329.07
  4. Step 4: Simplify right side
    42,400.54x = 1,356,574,922.79
  5. Step 5: Solve for x
    x = 1,356,574,922.79/42,400.54
  6. Step 6: Final answer
    x = 31,994.28

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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.