Home / 31,210.20-46,718.10-18,023.40

Finding the Fourth Proportional to 31,210.20, 46,718.10 and 18,023.40

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Solution

The fourth proportional to 31,210.20, 46,718.10 and 18,023.40 is: 26,978.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,210.20 : 46,718.10 = 18,023.40 : x
  2. Step 2: Convert to fraction form
    31,210.20/46,718.10 = 18,023.40/x
  3. Step 3: Cross multiply
    31,210.20x = 46,718.10 × 18,023.40
  4. Step 4: Simplify right side
    31,210.20x = 842,019,003.54
  5. Step 5: Solve for x
    x = 842,019,003.54/31,210.20
  6. Step 6: Final answer
    x = 26,978.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.