Home / 21,312,000.20-31,968,000.30-19,548,403.40

Finding the Fourth Proportional to 21,312,000.20, 31,968,000.30 and 19,548,403.40

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Solution

The fourth proportional to 21,312,000.20, 31,968,000.30 and 19,548,403.40 is: 29,322,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,000.20 : 31,968,000.30 = 19,548,403.40 : x
  2. Step 2: Convert to fraction form
    21,312,000.20/31,968,000.30 = 19,548,403.40/x
  3. Step 3: Cross multiply
    21,312,000.20x = 31,968,000.30 × 19,548,403.40
  4. Step 4: Simplify right side
    21,312,000.20x = 624,923,365,755,721
  5. Step 5: Solve for x
    x = 624,923,365,755,721/21,312,000.20
  6. Step 6: Final answer
    x = 29,322,605.10

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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.