Home / 39,980.63-60,007.53-20,272.79

Finding the Fourth Proportional to 39,980.63, 60,007.53 and 20,272.79

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Solution

The fourth proportional to 39,980.63, 60,007.53 and 20,272.79 is: 30,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.63 : 60,007.53 = 20,272.79 : x
  2. Step 2: Convert to fraction form
    39,980.63/60,007.53 = 20,272.79/x
  3. Step 3: Cross multiply
    39,980.63x = 60,007.53 × 20,272.79
  4. Step 4: Simplify right side
    39,980.63x = 1,216,520,054.11
  5. Step 5: Solve for x
    x = 1,216,520,054.11/39,980.63
  6. Step 6: Final answer
    x = 30,427.74

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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.