Home / 28,776.10-39,730.59-18,025.42

Finding the Fourth Proportional to 28,776.10, 39,730.59 and 18,025.42

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Solution

The fourth proportional to 28,776.10, 39,730.59 and 18,025.42 is: 24,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.10 : 39,730.59 = 18,025.42 : x
  2. Step 2: Convert to fraction form
    28,776.10/39,730.59 = 18,025.42/x
  3. Step 3: Cross multiply
    28,776.10x = 39,730.59 × 18,025.42
  4. Step 4: Simplify right side
    28,776.10x = 716,160,571.60
  5. Step 5: Solve for x
    x = 716,160,571.60/28,776.10
  6. Step 6: Final answer
    x = 24,887.34

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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.