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Finding the Fourth Proportional to 21,866.04, 32,802.84 and 7,078.68

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Solution

The fourth proportional to 21,866.04, 32,802.84 and 7,078.68 is: 10,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.04 : 32,802.84 = 7,078.68 : x
  2. Step 2: Convert to fraction form
    21,866.04/32,802.84 = 7,078.68/x
  3. Step 3: Cross multiply
    21,866.04x = 32,802.84 × 7,078.68
  4. Step 4: Simplify right side
    21,866.04x = 232,200,807.45
  5. Step 5: Solve for x
    x = 232,200,807.45/21,866.04
  6. Step 6: Final answer
    x = 10,619.24

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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.