Home / 21,398.87-32,071.57-10,303.49

Finding the Fourth Proportional to 21,398.87, 32,071.57 and 10,303.49

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Solution

The fourth proportional to 21,398.87, 32,071.57 and 10,303.49 is: 15,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.87 : 32,071.57 = 10,303.49 : x
  2. Step 2: Convert to fraction form
    21,398.87/32,071.57 = 10,303.49/x
  3. Step 3: Cross multiply
    21,398.87x = 32,071.57 × 10,303.49
  4. Step 4: Simplify right side
    21,398.87x = 330,449,100.78
  5. Step 5: Solve for x
    x = 330,449,100.78/21,398.87
  6. Step 6: Final answer
    x = 15,442.36

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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.