Home / 28,500.51-42,751.62-9,780.27

Finding the Fourth Proportional to 28,500.51, 42,751.62 and 9,780.27

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Solution

The fourth proportional to 28,500.51, 42,751.62 and 9,780.27 is: 14,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.51 : 42,751.62 = 9,780.27 : x
  2. Step 2: Convert to fraction form
    28,500.51/42,751.62 = 9,780.27/x
  3. Step 3: Cross multiply
    28,500.51x = 42,751.62 × 9,780.27
  4. Step 4: Simplify right side
    28,500.51x = 418,122,386.54
  5. Step 5: Solve for x
    x = 418,122,386.54/28,500.51
  6. Step 6: Final answer
    x = 14,670.70

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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.