Home / 28,563.54-39,416.01-15,816.01

Finding the Fourth Proportional to 28,563.54, 39,416.01 and 15,816.01

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Solution

The fourth proportional to 28,563.54, 39,416.01 and 15,816.01 is: 21,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.54 : 39,416.01 = 15,816.01 : x
  2. Step 2: Convert to fraction form
    28,563.54/39,416.01 = 15,816.01/x
  3. Step 3: Cross multiply
    28,563.54x = 39,416.01 × 15,816.01
  4. Step 4: Simplify right side
    28,563.54x = 623,403,909.78
  5. Step 5: Solve for x
    x = 623,403,909.78/28,563.54
  6. Step 6: Final answer
    x = 21,825.16

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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.