Home / 28,986.08-43,219.47-28,461.20

Finding the Fourth Proportional to 28,986.08, 43,219.47 and 28,461.20

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Solution

The fourth proportional to 28,986.08, 43,219.47 and 28,461.20 is: 42,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.08 : 43,219.47 = 28,461.20 : x
  2. Step 2: Convert to fraction form
    28,986.08/43,219.47 = 28,461.20/x
  3. Step 3: Cross multiply
    28,986.08x = 43,219.47 × 28,461.20
  4. Step 4: Simplify right side
    28,986.08x = 1,230,077,763.47
  5. Step 5: Solve for x
    x = 1,230,077,763.47/28,986.08
  6. Step 6: Final answer
    x = 42,436.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.