Home / 28,245.81-42,341.69-10,471.68

Finding the Fourth Proportional to 28,245.81, 42,341.69 and 10,471.68

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Solution

The fourth proportional to 28,245.81, 42,341.69 and 10,471.68 is: 15,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.81 : 42,341.69 = 10,471.68 : x
  2. Step 2: Convert to fraction form
    28,245.81/42,341.69 = 10,471.68/x
  3. Step 3: Cross multiply
    28,245.81x = 42,341.69 × 10,471.68
  4. Step 4: Simplify right side
    28,245.81x = 443,388,595.62
  5. Step 5: Solve for x
    x = 443,388,595.62/28,245.81
  6. Step 6: Final answer
    x = 15,697.50

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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.