Home / 36,036.48-53,966.88-20,406.72

Finding the Fourth Proportional to 36,036.48, 53,966.88 and 20,406.72

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Solution

The fourth proportional to 36,036.48, 53,966.88 and 20,406.72 is: 30,560.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,036.48 : 53,966.88 = 20,406.72 : x
  2. Step 2: Convert to fraction form
    36,036.48/53,966.88 = 20,406.72/x
  3. Step 3: Cross multiply
    36,036.48x = 53,966.88 × 20,406.72
  4. Step 4: Simplify right side
    36,036.48x = 1,101,287,009.43
  5. Step 5: Solve for x
    x = 1,101,287,009.43/36,036.48
  6. Step 6: Final answer
    x = 30,560.34

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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.