Home / 28,525.49-42,775.74-13,536.88

Finding the Fourth Proportional to 28,525.49, 42,775.74 and 13,536.88

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Solution

The fourth proportional to 28,525.49, 42,775.74 and 13,536.88 is: 20,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.49 : 42,775.74 = 13,536.88 : x
  2. Step 2: Convert to fraction form
    28,525.49/42,775.74 = 13,536.88/x
  3. Step 3: Cross multiply
    28,525.49x = 42,775.74 × 13,536.88
  4. Step 4: Simplify right side
    28,525.49x = 579,050,059.29
  5. Step 5: Solve for x
    x = 579,050,059.29/28,525.49
  6. Step 6: Final answer
    x = 20,299.39

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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.