Home / 21,376,362-29,501,245.80-11,720,436.24

Finding the Fourth Proportional to 21,376,362, 29,501,245.80 and 11,720,436.24

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Solution

The fourth proportional to 21,376,362, 29,501,245.80 and 11,720,436.24 is: 16,175,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376,362 : 29,501,245.80 = 11,720,436.24 : x
  2. Step 2: Convert to fraction form
    21,376,362/29,501,245.80 = 11,720,436.24/x
  3. Step 3: Cross multiply
    21,376,362x = 29,501,245.80 × 11,720,436.24
  4. Step 4: Simplify right side
    21,376,362x = 345,767,470,399,467.81
  5. Step 5: Solve for x
    x = 345,767,470,399,467.81/21,376,362
  6. Step 6: Final answer
    x = 16,175,225.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.