Home / 43,030.09-64,498.98-20,812.90

Finding the Fourth Proportional to 43,030.09, 64,498.98 and 20,812.90

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Solution

The fourth proportional to 43,030.09, 64,498.98 and 20,812.90 is: 31,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,030.09 : 64,498.98 = 20,812.90 : x
  2. Step 2: Convert to fraction form
    43,030.09/64,498.98 = 20,812.90/x
  3. Step 3: Cross multiply
    43,030.09x = 64,498.98 × 20,812.90
  4. Step 4: Simplify right side
    43,030.09x = 1,342,410,858.58
  5. Step 5: Solve for x
    x = 1,342,410,858.58/43,030.09
  6. Step 6: Final answer
    x = 31,197.03

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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.