Home / 28,011.48-41,994.54-10,478.76

Finding the Fourth Proportional to 28,011.48, 41,994.54 and 10,478.76

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Solution

The fourth proportional to 28,011.48, 41,994.54 and 10,478.76 is: 15,709.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.48 : 41,994.54 = 10,478.76 : x
  2. Step 2: Convert to fraction form
    28,011.48/41,994.54 = 10,478.76/x
  3. Step 3: Cross multiply
    28,011.48x = 41,994.54 × 10,478.76
  4. Step 4: Simplify right side
    28,011.48x = 440,050,705.97
  5. Step 5: Solve for x
    x = 440,050,705.97/28,011.48
  6. Step 6: Final answer
    x = 15,709.66

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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.