Home / 40,825.48-61,210.36-20,785.72

Finding the Fourth Proportional to 40,825.48, 61,210.36 and 20,785.72

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Solution

The fourth proportional to 40,825.48, 61,210.36 and 20,785.72 is: 31,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,825.48 : 61,210.36 = 20,785.72 : x
  2. Step 2: Convert to fraction form
    40,825.48/61,210.36 = 20,785.72/x
  3. Step 3: Cross multiply
    40,825.48x = 61,210.36 × 20,785.72
  4. Step 4: Simplify right side
    40,825.48x = 1,272,301,404.06
  5. Step 5: Solve for x
    x = 1,272,301,404.06/40,825.48
  6. Step 6: Final answer
    x = 31,164.40

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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.