Home / 20,873.06-31,323.16-9,038.39

Finding the Fourth Proportional to 20,873.06, 31,323.16 and 9,038.39

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Solution

The fourth proportional to 20,873.06, 31,323.16 and 9,038.39 is: 13,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.06 : 31,323.16 = 9,038.39 : x
  2. Step 2: Convert to fraction form
    20,873.06/31,323.16 = 9,038.39/x
  3. Step 3: Cross multiply
    20,873.06x = 31,323.16 × 9,038.39
  4. Step 4: Simplify right side
    20,873.06x = 283,110,936.11
  5. Step 5: Solve for x
    x = 283,110,936.11/20,873.06
  6. Step 6: Final answer
    x = 13,563.46

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1.5x scale

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.