Home / 31,622.16-43,622.84-18,866.40

Finding the Fourth Proportional to 31,622.16, 43,622.84 and 18,866.40

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Solution

The fourth proportional to 31,622.16, 43,622.84 and 18,866.40 is: 26,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.16 : 43,622.84 = 18,866.40 : x
  2. Step 2: Convert to fraction form
    31,622.16/43,622.84 = 18,866.40/x
  3. Step 3: Cross multiply
    31,622.16x = 43,622.84 × 18,866.40
  4. Step 4: Simplify right side
    31,622.16x = 823,005,948.58
  5. Step 5: Solve for x
    x = 823,005,948.58/31,622.16
  6. Step 6: Final answer
    x = 26,026.24

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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.