Home / 19,032.96-28,553.28-6,720.64

Finding the Fourth Proportional to 19,032.96, 28,553.28 and 6,720.64

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Solution

The fourth proportional to 19,032.96, 28,553.28 and 6,720.64 is: 10,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,032.96 : 28,553.28 = 6,720.64 : x
  2. Step 2: Convert to fraction form
    19,032.96/28,553.28 = 6,720.64/x
  3. Step 3: Cross multiply
    19,032.96x = 28,553.28 × 6,720.64
  4. Step 4: Simplify right side
    19,032.96x = 191,896,315.70
  5. Step 5: Solve for x
    x = 191,896,315.70/19,032.96
  6. Step 6: Final answer
    x = 10,082.32

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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.