Home / 28,665.47-42,996.68-8,941.76

Finding the Fourth Proportional to 28,665.47, 42,996.68 and 8,941.76

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Solution

The fourth proportional to 28,665.47, 42,996.68 and 8,941.76 is: 13,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.47 : 42,996.68 = 8,941.76 : x
  2. Step 2: Convert to fraction form
    28,665.47/42,996.68 = 8,941.76/x
  3. Step 3: Cross multiply
    28,665.47x = 42,996.68 × 8,941.76
  4. Step 4: Simplify right side
    28,665.47x = 384,466,089.67
  5. Step 5: Solve for x
    x = 384,466,089.67/28,665.47
  6. Step 6: Final answer
    x = 13,412.17

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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.