Home / 28,312.94-42,488.55-10,782.32

Finding the Fourth Proportional to 28,312.94, 42,488.55 and 10,782.32

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Solution

The fourth proportional to 28,312.94, 42,488.55 and 10,782.32 is: 16,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.94 : 42,488.55 = 10,782.32 : x
  2. Step 2: Convert to fraction form
    28,312.94/42,488.55 = 10,782.32/x
  3. Step 3: Cross multiply
    28,312.94x = 42,488.55 × 10,782.32
  4. Step 4: Simplify right side
    28,312.94x = 458,124,929.99
  5. Step 5: Solve for x
    x = 458,124,929.99/28,312.94
  6. Step 6: Final answer
    x = 16,180.76

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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.