Home / 21,739.96-29,968.14-17,916.76

Finding the Fourth Proportional to 21,739.96, 29,968.14 and 17,916.76

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Solution

The fourth proportional to 21,739.96, 29,968.14 and 17,916.76 is: 24,697.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.96 : 29,968.14 = 17,916.76 : x
  2. Step 2: Convert to fraction form
    21,739.96/29,968.14 = 17,916.76/x
  3. Step 3: Cross multiply
    21,739.96x = 29,968.14 × 17,916.76
  4. Step 4: Simplify right side
    21,739.96x = 536,931,972.03
  5. Step 5: Solve for x
    x = 536,931,972.03/21,739.96
  6. Step 6: Final answer
    x = 24,697.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.