Home / 43,322.77-64,986.47-13,742.89

Finding the Fourth Proportional to 43,322.77, 64,986.47 and 13,742.89

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Solution

The fourth proportional to 43,322.77, 64,986.47 and 13,742.89 is: 20,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,322.77 : 64,986.47 = 13,742.89 : x
  2. Step 2: Convert to fraction form
    43,322.77/64,986.47 = 13,742.89/x
  3. Step 3: Cross multiply
    43,322.77x = 64,986.47 × 13,742.89
  4. Step 4: Simplify right side
    43,322.77x = 893,101,908.70
  5. Step 5: Solve for x
    x = 893,101,908.70/43,322.77
  6. Step 6: Final answer
    x = 20,615.07

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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.