Home / 21,487,237.20-32,230,855.80-21,263,288.40

Finding the Fourth Proportional to 21,487,237.20, 32,230,855.80 and 21,263,288.40

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Solution

The fourth proportional to 21,487,237.20, 32,230,855.80 and 21,263,288.40 is: 31,894,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487,237.20 : 32,230,855.80 = 21,263,288.40 : x
  2. Step 2: Convert to fraction form
    21,487,237.20/32,230,855.80 = 21,263,288.40/x
  3. Step 3: Cross multiply
    21,487,237.20x = 32,230,855.80 × 21,263,288.40
  4. Step 4: Simplify right side
    21,487,237.20x = 685,333,982,254,212.75
  5. Step 5: Solve for x
    x = 685,333,982,254,212.75/21,487,237.20
  6. Step 6: Final answer
    x = 31,894,932.60

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1.5x scale

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.