Home / 20,892,820.21-31,310,037.95-17,802,675.32

Finding the Fourth Proportional to 20,892,820.21, 31,310,037.95 and 17,802,675.32

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Solution

The fourth proportional to 20,892,820.21, 31,310,037.95 and 17,802,675.32 is: 26,679,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892,820.21 : 31,310,037.95 = 17,802,675.32 : x
  2. Step 2: Convert to fraction form
    20,892,820.21/31,310,037.95 = 17,802,675.32/x
  3. Step 3: Cross multiply
    20,892,820.21x = 31,310,037.95 × 17,802,675.32
  4. Step 4: Simplify right side
    20,892,820.21x = 557,402,440,003,510.25
  5. Step 5: Solve for x
    x = 557,402,440,003,510.25/20,892,820.21
  6. Step 6: Final answer
    x = 26,679,138.31

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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.