Home / 19,278.90-28,935.12-10,975.62

Finding the Fourth Proportional to 19,278.90, 28,935.12 and 10,975.62

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Solution

The fourth proportional to 19,278.90, 28,935.12 and 10,975.62 is: 16,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.90 : 28,935.12 = 10,975.62 : x
  2. Step 2: Convert to fraction form
    19,278.90/28,935.12 = 10,975.62/x
  3. Step 3: Cross multiply
    19,278.90x = 28,935.12 × 10,975.62
  4. Step 4: Simplify right side
    19,278.90x = 317,580,881.77
  5. Step 5: Solve for x
    x = 317,580,881.77/19,278.90
  6. Step 6: Final answer
    x = 16,472.98

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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.