Home / 21,886.40-32,829.60-7,095.80

Finding the Fourth Proportional to 21,886.40, 32,829.60 and 7,095.80

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Solution

The fourth proportional to 21,886.40, 32,829.60 and 7,095.80 is: 10,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.40 : 32,829.60 = 7,095.80 : x
  2. Step 2: Convert to fraction form
    21,886.40/32,829.60 = 7,095.80/x
  3. Step 3: Cross multiply
    21,886.40x = 32,829.60 × 7,095.80
  4. Step 4: Simplify right side
    21,886.40x = 232,952,275.68
  5. Step 5: Solve for x
    x = 232,952,275.68/21,886.40
  6. Step 6: Final answer
    x = 10,643.70

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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.