Home / 28,552.69-42,829.34-12,758.50

Finding the Fourth Proportional to 28,552.69, 42,829.34 and 12,758.50

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Solution

The fourth proportional to 28,552.69, 42,829.34 and 12,758.50 is: 19,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.69 : 42,829.34 = 12,758.50 : x
  2. Step 2: Convert to fraction form
    28,552.69/42,829.34 = 12,758.50/x
  3. Step 3: Cross multiply
    28,552.69x = 42,829.34 × 12,758.50
  4. Step 4: Simplify right side
    28,552.69x = 546,438,134.39
  5. Step 5: Solve for x
    x = 546,438,134.39/28,552.69
  6. Step 6: Final answer
    x = 19,137.89

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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.