Home / 29,368.18-40,528.40-15,939.55

Finding the Fourth Proportional to 29,368.18, 40,528.40 and 15,939.55

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Solution

The fourth proportional to 29,368.18, 40,528.40 and 15,939.55 is: 21,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,368.18 : 40,528.40 = 15,939.55 : x
  2. Step 2: Convert to fraction form
    29,368.18/40,528.40 = 15,939.55/x
  3. Step 3: Cross multiply
    29,368.18x = 40,528.40 × 15,939.55
  4. Step 4: Simplify right side
    29,368.18x = 646,004,458.22
  5. Step 5: Solve for x
    x = 646,004,458.22/29,368.18
  6. Step 6: Final answer
    x = 21,996.75

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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.