Home / 43,103.80-64,655.58-13,521.76

Finding the Fourth Proportional to 43,103.80, 64,655.58 and 13,521.76

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Solution

The fourth proportional to 43,103.80, 64,655.58 and 13,521.76 is: 20,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,103.80 : 64,655.58 = 13,521.76 : x
  2. Step 2: Convert to fraction form
    43,103.80/64,655.58 = 13,521.76/x
  3. Step 3: Cross multiply
    43,103.80x = 64,655.58 × 13,521.76
  4. Step 4: Simplify right side
    43,103.80x = 874,257,235.42
  5. Step 5: Solve for x
    x = 874,257,235.42/43,103.80
  6. Step 6: Final answer
    x = 20,282.60

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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.