Home / 28,558.20-42,824.34-10,090.20

Finding the Fourth Proportional to 28,558.20, 42,824.34 and 10,090.20

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Solution

The fourth proportional to 28,558.20, 42,824.34 and 10,090.20 is: 15,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.20 : 42,824.34 = 10,090.20 : x
  2. Step 2: Convert to fraction form
    28,558.20/42,824.34 = 10,090.20/x
  3. Step 3: Cross multiply
    28,558.20x = 42,824.34 × 10,090.20
  4. Step 4: Simplify right side
    28,558.20x = 432,106,155.47
  5. Step 5: Solve for x
    x = 432,106,155.47/28,558.20
  6. Step 6: Final answer
    x = 15,130.72

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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.