Home / 28,410.18-39,206.36-15,663.84

Finding the Fourth Proportional to 28,410.18, 39,206.36 and 15,663.84

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Solution

The fourth proportional to 28,410.18, 39,206.36 and 15,663.84 is: 21,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.18 : 39,206.36 = 15,663.84 : x
  2. Step 2: Convert to fraction form
    28,410.18/39,206.36 = 15,663.84/x
  3. Step 3: Cross multiply
    28,410.18x = 39,206.36 × 15,663.84
  4. Step 4: Simplify right side
    28,410.18x = 614,122,150.02
  5. Step 5: Solve for x
    x = 614,122,150.02/28,410.18
  6. Step 6: Final answer
    x = 21,616.27

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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.