Home / 28,135.76-42,166.73-15,649.35

Finding the Fourth Proportional to 28,135.76, 42,166.73 and 15,649.35

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Solution

The fourth proportional to 28,135.76, 42,166.73 and 15,649.35 is: 23,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.76 : 42,166.73 = 15,649.35 : x
  2. Step 2: Convert to fraction form
    28,135.76/42,166.73 = 15,649.35/x
  3. Step 3: Cross multiply
    28,135.76x = 42,166.73 × 15,649.35
  4. Step 4: Simplify right side
    28,135.76x = 659,881,946.28
  5. Step 5: Solve for x
    x = 659,881,946.28/28,135.76
  6. Step 6: Final answer
    x = 23,453.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.