Home / 31,280.76-43,165.80-17,133.30

Finding the Fourth Proportional to 31,280.76, 43,165.80 and 17,133.30

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Solution

The fourth proportional to 31,280.76, 43,165.80 and 17,133.30 is: 23,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.76 : 43,165.80 = 17,133.30 : x
  2. Step 2: Convert to fraction form
    31,280.76/43,165.80 = 17,133.30/x
  3. Step 3: Cross multiply
    31,280.76x = 43,165.80 × 17,133.30
  4. Step 4: Simplify right side
    31,280.76x = 739,572,601.14
  5. Step 5: Solve for x
    x = 739,572,601.14/31,280.76
  6. Step 6: Final answer
    x = 23,643.05

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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.