Home / 28,417.87-39,208.75-16,478.83

Finding the Fourth Proportional to 28,417.87, 39,208.75 and 16,478.83

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Solution

The fourth proportional to 28,417.87, 39,208.75 and 16,478.83 is: 22,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.87 : 39,208.75 = 16,478.83 : x
  2. Step 2: Convert to fraction form
    28,417.87/39,208.75 = 16,478.83/x
  3. Step 3: Cross multiply
    28,417.87x = 39,208.75 × 16,478.83
  4. Step 4: Simplify right side
    28,417.87x = 646,114,325.76
  5. Step 5: Solve for x
    x = 646,114,325.76/28,417.87
  6. Step 6: Final answer
    x = 22,736.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.