Home / 39,581.10-59,256.36-20,816.64

Finding the Fourth Proportional to 39,581.10, 59,256.36 and 20,816.64

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Solution

The fourth proportional to 39,581.10, 59,256.36 and 20,816.64 is: 31,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.10 : 59,256.36 = 20,816.64 : x
  2. Step 2: Convert to fraction form
    39,581.10/59,256.36 = 20,816.64/x
  3. Step 3: Cross multiply
    39,581.10x = 59,256.36 × 20,816.64
  4. Step 4: Simplify right side
    39,581.10x = 1,233,518,313.83
  5. Step 5: Solve for x
    x = 1,233,518,313.83/39,581.10
  6. Step 6: Final answer
    x = 31,164.33

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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.