Home / 31,427.58-43,368.42-17,280.90

Finding the Fourth Proportional to 31,427.58, 43,368.42 and 17,280.90

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Solution

The fourth proportional to 31,427.58, 43,368.42 and 17,280.90 is: 23,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.58 : 43,368.42 = 17,280.90 : x
  2. Step 2: Convert to fraction form
    31,427.58/43,368.42 = 17,280.90/x
  3. Step 3: Cross multiply
    31,427.58x = 43,368.42 × 17,280.90
  4. Step 4: Simplify right side
    31,427.58x = 749,445,329.18
  5. Step 5: Solve for x
    x = 749,445,329.18/31,427.58
  6. Step 6: Final answer
    x = 23,846.74

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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.