Home / 21,869.17-32,805.71-9,386.39

Finding the Fourth Proportional to 21,869.17, 32,805.71 and 9,386.39

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Solution

The fourth proportional to 21,869.17, 32,805.71 and 9,386.39 is: 14,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.17 : 32,805.71 = 9,386.39 : x
  2. Step 2: Convert to fraction form
    21,869.17/32,805.71 = 9,386.39/x
  3. Step 3: Cross multiply
    21,869.17x = 32,805.71 × 9,386.39
  4. Step 4: Simplify right side
    21,869.17x = 307,927,188.29
  5. Step 5: Solve for x
    x = 307,927,188.29/21,869.17
  6. Step 6: Final answer
    x = 14,080.42

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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.