Home / 21,017.51-31,533.80-9,004.63

Finding the Fourth Proportional to 21,017.51, 31,533.80 and 9,004.63

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Solution

The fourth proportional to 21,017.51, 31,533.80 and 9,004.63 is: 13,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.51 : 31,533.80 = 9,004.63 : x
  2. Step 2: Convert to fraction form
    21,017.51/31,533.80 = 9,004.63/x
  3. Step 3: Cross multiply
    21,017.51x = 31,533.80 × 9,004.63
  4. Step 4: Simplify right side
    21,017.51x = 283,949,998.80
  5. Step 5: Solve for x
    x = 283,949,998.80/21,017.51
  6. Step 6: Final answer
    x = 13,510.16

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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.