Home / 28,385.49-42,540.51-15,055.74

Finding the Fourth Proportional to 28,385.49, 42,540.51 and 15,055.74

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Solution

The fourth proportional to 28,385.49, 42,540.51 and 15,055.74 is: 22,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.49 : 42,540.51 = 15,055.74 : x
  2. Step 2: Convert to fraction form
    28,385.49/42,540.51 = 15,055.74/x
  3. Step 3: Cross multiply
    28,385.49x = 42,540.51 × 15,055.74
  4. Step 4: Simplify right side
    28,385.49x = 640,478,858.03
  5. Step 5: Solve for x
    x = 640,478,858.03/28,385.49
  6. Step 6: Final answer
    x = 22,563.60

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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.