Home / 31,728,158.80-43,798,252.37-21,428,832.22

Finding the Fourth Proportional to 31,728,158.80, 43,798,252.37 and 21,428,832.22

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Solution

The fourth proportional to 31,728,158.80, 43,798,252.37 and 21,428,832.22 is: 29,580,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728,158.80 : 43,798,252.37 = 21,428,832.22 : x
  2. Step 2: Convert to fraction form
    31,728,158.80/43,798,252.37 = 21,428,832.22/x
  3. Step 3: Cross multiply
    31,728,158.80x = 43,798,252.37 × 21,428,832.22
  4. Step 4: Simplify right side
    31,728,158.80x = 938,545,401,349,307.62
  5. Step 5: Solve for x
    x = 938,545,401,349,307.62/31,728,158.80
  6. Step 6: Final answer
    x = 29,580,834.09

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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.