Home / 43,389.56-59,858.28-28,278.72

Finding the Fourth Proportional to 43,389.56, 59,858.28 and 28,278.72

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Solution

The fourth proportional to 43,389.56, 59,858.28 and 28,278.72 is: 39,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,389.56 : 59,858.28 = 28,278.72 : x
  2. Step 2: Convert to fraction form
    43,389.56/59,858.28 = 28,278.72/x
  3. Step 3: Cross multiply
    43,389.56x = 59,858.28 × 28,278.72
  4. Step 4: Simplify right side
    43,389.56x = 1,692,715,539.80
  5. Step 5: Solve for x
    x = 1,692,715,539.80/43,389.56
  6. Step 6: Final answer
    x = 39,012.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.