Home / 28,351.30-42,536.51-12,554.18

Finding the Fourth Proportional to 28,351.30, 42,536.51 and 12,554.18

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Solution

The fourth proportional to 28,351.30, 42,536.51 and 12,554.18 is: 18,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.30 : 42,536.51 = 12,554.18 : x
  2. Step 2: Convert to fraction form
    28,351.30/42,536.51 = 12,554.18/x
  3. Step 3: Cross multiply
    28,351.30x = 42,536.51 × 12,554.18
  4. Step 4: Simplify right side
    28,351.30x = 534,010,727.66
  5. Step 5: Solve for x
    x = 534,010,727.66/28,351.30
  6. Step 6: Final answer
    x = 18,835.50

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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.