Home / 21,487,235.20-32,230,852.80-21,263,286.40

Finding the Fourth Proportional to 21,487,235.20, 32,230,852.80 and 21,263,286.40

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Solution

The fourth proportional to 21,487,235.20, 32,230,852.80 and 21,263,286.40 is: 31,894,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487,235.20 : 32,230,852.80 = 21,263,286.40 : x
  2. Step 2: Convert to fraction form
    21,487,235.20/32,230,852.80 = 21,263,286.40/x
  3. Step 3: Cross multiply
    21,487,235.20x = 32,230,852.80 × 21,263,286.40
  4. Step 4: Simplify right side
    21,487,235.20x = 685,333,854,002,641.88
  5. Step 5: Solve for x
    x = 685,333,854,002,641.88/21,487,235.20
  6. Step 6: Final answer
    x = 31,894,929.60

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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.