Home / 28,271,574.70-39,016,439.62-21,289,934.64

Finding the Fourth Proportional to 28,271,574.70, 39,016,439.62 and 21,289,934.64

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Solution

The fourth proportional to 28,271,574.70, 39,016,439.62 and 21,289,934.64 is: 29,381,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271,574.70 : 39,016,439.62 = 21,289,934.64 : x
  2. Step 2: Convert to fraction form
    28,271,574.70/39,016,439.62 = 21,289,934.64/x
  3. Step 3: Cross multiply
    28,271,574.70x = 39,016,439.62 × 21,289,934.64
  4. Step 4: Simplify right side
    28,271,574.70x = 830,657,449,395,306.38
  5. Step 5: Solve for x
    x = 830,657,449,395,306.38/28,271,574.70
  6. Step 6: Final answer
    x = 29,381,364.79

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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.