Home / 21,151,955.57-31,727,933.64-13,961,807.51

Finding the Fourth Proportional to 21,151,955.57, 31,727,933.64 and 13,961,807.51

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Solution

The fourth proportional to 21,151,955.57, 31,727,933.64 and 13,961,807.51 is: 20,942,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151,955.57 : 31,727,933.64 = 13,961,807.51 : x
  2. Step 2: Convert to fraction form
    21,151,955.57/31,727,933.64 = 13,961,807.51/x
  3. Step 3: Cross multiply
    21,151,955.57x = 31,727,933.64 × 13,961,807.51
  4. Step 4: Simplify right side
    21,151,955.57x = 442,979,302,013,094
  5. Step 5: Solve for x
    x = 442,979,302,013,094/21,151,955.57
  6. Step 6: Final answer
    x = 20,942,711.45

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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.