Home / 28,214.76-38,946.48-19,255.86

Finding the Fourth Proportional to 28,214.76, 38,946.48 and 19,255.86

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Solution

The fourth proportional to 28,214.76, 38,946.48 and 19,255.86 is: 26,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.76 : 38,946.48 = 19,255.86 : x
  2. Step 2: Convert to fraction form
    28,214.76/38,946.48 = 19,255.86/x
  3. Step 3: Cross multiply
    28,214.76x = 38,946.48 × 19,255.86
  4. Step 4: Simplify right side
    28,214.76x = 749,947,966.37
  5. Step 5: Solve for x
    x = 749,947,966.37/28,214.76
  6. Step 6: Final answer
    x = 26,579.99

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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.