Home / 28,312.85-42,488.41-10,782.23

Finding the Fourth Proportional to 28,312.85, 42,488.41 and 10,782.23

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Solution

The fourth proportional to 28,312.85, 42,488.41 and 10,782.23 is: 16,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.85 : 42,488.41 = 10,782.23 : x
  2. Step 2: Convert to fraction form
    28,312.85/42,488.41 = 10,782.23/x
  3. Step 3: Cross multiply
    28,312.85x = 42,488.41 × 10,782.23
  4. Step 4: Simplify right side
    28,312.85x = 458,119,569.56
  5. Step 5: Solve for x
    x = 458,119,569.56/28,312.85
  6. Step 6: Final answer
    x = 16,180.62

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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.