Home / 31,114.60-42,916.44-30,086.08

Finding the Fourth Proportional to 31,114.60, 42,916.44 and 30,086.08

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Solution

The fourth proportional to 31,114.60, 42,916.44 and 30,086.08 is: 41,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.60 : 42,916.44 = 30,086.08 : x
  2. Step 2: Convert to fraction form
    31,114.60/42,916.44 = 30,086.08/x
  3. Step 3: Cross multiply
    31,114.60x = 42,916.44 × 30,086.08
  4. Step 4: Simplify right side
    31,114.60x = 1,291,187,447.16
  5. Step 5: Solve for x
    x = 1,291,187,447.16/31,114.60
  6. Step 6: Final answer
    x = 41,497.80

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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.