Home / 28,643.10-42,950.77-16,800.74

Finding the Fourth Proportional to 28,643.10, 42,950.77 and 16,800.74

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Solution

The fourth proportional to 28,643.10, 42,950.77 and 16,800.74 is: 25,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.10 : 42,950.77 = 16,800.74 : x
  2. Step 2: Convert to fraction form
    28,643.10/42,950.77 = 16,800.74/x
  3. Step 3: Cross multiply
    28,643.10x = 42,950.77 × 16,800.74
  4. Step 4: Simplify right side
    28,643.10x = 721,604,719.57
  5. Step 5: Solve for x
    x = 721,604,719.57/28,643.10
  6. Step 6: Final answer
    x = 25,192.97

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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.