Home / 28,385.72-39,210.54-25,736.12

Finding the Fourth Proportional to 28,385.72, 39,210.54 and 25,736.12

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Solution

The fourth proportional to 28,385.72, 39,210.54 and 25,736.12 is: 35,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.72 : 39,210.54 = 25,736.12 : x
  2. Step 2: Convert to fraction form
    28,385.72/39,210.54 = 25,736.12/x
  3. Step 3: Cross multiply
    28,385.72x = 39,210.54 × 25,736.12
  4. Step 4: Simplify right side
    28,385.72x = 1,009,127,162.70
  5. Step 5: Solve for x
    x = 1,009,127,162.70/28,385.72
  6. Step 6: Final answer
    x = 35,550.52

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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.