Home / 28,130.16-42,201.64-14,975.60

Finding the Fourth Proportional to 28,130.16, 42,201.64 and 14,975.60

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Solution

The fourth proportional to 28,130.16, 42,201.64 and 14,975.60 is: 22,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.16 : 42,201.64 = 14,975.60 : x
  2. Step 2: Convert to fraction form
    28,130.16/42,201.64 = 14,975.60/x
  3. Step 3: Cross multiply
    28,130.16x = 42,201.64 × 14,975.60
  4. Step 4: Simplify right side
    28,130.16x = 631,994,879.98
  5. Step 5: Solve for x
    x = 631,994,879.98/28,130.16
  6. Step 6: Final answer
    x = 22,466.81

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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.