Home / 21,068.26-31,598.94-7,028.40

Finding the Fourth Proportional to 21,068.26, 31,598.94 and 7,028.40

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Solution

The fourth proportional to 21,068.26, 31,598.94 and 7,028.40 is: 10,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.26 : 31,598.94 = 7,028.40 : x
  2. Step 2: Convert to fraction form
    21,068.26/31,598.94 = 7,028.40/x
  3. Step 3: Cross multiply
    21,068.26x = 31,598.94 × 7,028.40
  4. Step 4: Simplify right side
    21,068.26x = 222,089,875.76
  5. Step 5: Solve for x
    x = 222,089,875.76/21,068.26
  6. Step 6: Final answer
    x = 10,541.44

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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.