Home / 28,271,573.20-39,016,437.55-21,289,933.14

Finding the Fourth Proportional to 28,271,573.20, 39,016,437.55 and 21,289,933.14

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Solution

The fourth proportional to 28,271,573.20, 39,016,437.55 and 21,289,933.14 is: 29,381,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271,573.20 : 39,016,437.55 = 21,289,933.14 : x
  2. Step 2: Convert to fraction form
    28,271,573.20/39,016,437.55 = 21,289,933.14/x
  3. Step 3: Cross multiply
    28,271,573.20x = 39,016,437.55 × 21,289,933.14
  4. Step 4: Simplify right side
    28,271,573.20x = 830,657,346,498,953.62
  5. Step 5: Solve for x
    x = 830,657,346,498,953.62/28,271,573.20
  6. Step 6: Final answer
    x = 29,381,362.71

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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.