Home / 28,573.04-42,866.40-11,923.81

Finding the Fourth Proportional to 28,573.04, 42,866.40 and 11,923.81

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Solution

The fourth proportional to 28,573.04, 42,866.40 and 11,923.81 is: 17,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.04 : 42,866.40 = 11,923.81 : x
  2. Step 2: Convert to fraction form
    28,573.04/42,866.40 = 11,923.81/x
  3. Step 3: Cross multiply
    28,573.04x = 42,866.40 × 11,923.81
  4. Step 4: Simplify right side
    28,573.04x = 511,130,535.03
  5. Step 5: Solve for x
    x = 511,130,535.03/28,573.04
  6. Step 6: Final answer
    x = 17,888.56

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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.