Home / 28,554.90-42,842.49-12,758.48

Finding the Fourth Proportional to 28,554.90, 42,842.49 and 12,758.48

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Solution

The fourth proportional to 28,554.90, 42,842.49 and 12,758.48 is: 19,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554.90 : 42,842.49 = 12,758.48 : x
  2. Step 2: Convert to fraction form
    28,554.90/42,842.49 = 12,758.48/x
  3. Step 3: Cross multiply
    28,554.90x = 42,842.49 × 12,758.48
  4. Step 4: Simplify right side
    28,554.90x = 546,604,950.42
  5. Step 5: Solve for x
    x = 546,604,950.42/28,554.90
  6. Step 6: Final answer
    x = 19,142.25

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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.