Home / 28,917.63-39,917.34-18,848.52

Finding the Fourth Proportional to 28,917.63, 39,917.34 and 18,848.52

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Solution

The fourth proportional to 28,917.63, 39,917.34 and 18,848.52 is: 26,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.63 : 39,917.34 = 18,848.52 : x
  2. Step 2: Convert to fraction form
    28,917.63/39,917.34 = 18,848.52/x
  3. Step 3: Cross multiply
    28,917.63x = 39,917.34 × 18,848.52
  4. Step 4: Simplify right side
    28,917.63x = 752,382,781.34
  5. Step 5: Solve for x
    x = 752,382,781.34/28,917.63
  6. Step 6: Final answer
    x = 26,018.13

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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.