Home / 21,133.02-31,710.44-9,295.08

Finding the Fourth Proportional to 21,133.02, 31,710.44 and 9,295.08

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Solution

The fourth proportional to 21,133.02, 31,710.44 and 9,295.08 is: 13,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.02 : 31,710.44 = 9,295.08 : x
  2. Step 2: Convert to fraction form
    21,133.02/31,710.44 = 9,295.08/x
  3. Step 3: Cross multiply
    21,133.02x = 31,710.44 × 9,295.08
  4. Step 4: Simplify right side
    21,133.02x = 294,751,030.16
  5. Step 5: Solve for x
    x = 294,751,030.16/21,133.02
  6. Step 6: Final answer
    x = 13,947.42

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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.