Home / 43,210.99-64,808.27-13,620.88

Finding the Fourth Proportional to 43,210.99, 64,808.27 and 13,620.88

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Solution

The fourth proportional to 43,210.99, 64,808.27 and 13,620.88 is: 20,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,210.99 : 64,808.27 = 13,620.88 : x
  2. Step 2: Convert to fraction form
    43,210.99/64,808.27 = 13,620.88/x
  3. Step 3: Cross multiply
    43,210.99x = 64,808.27 × 13,620.88
  4. Step 4: Simplify right side
    43,210.99x = 882,745,368.12
  5. Step 5: Solve for x
    x = 882,745,368.12/43,210.99
  6. Step 6: Final answer
    x = 20,428.73

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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.