Home / 31,435.36-43,368.50-17,999.40

Finding the Fourth Proportional to 31,435.36, 43,368.50 and 17,999.40

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Solution

The fourth proportional to 31,435.36, 43,368.50 and 17,999.40 is: 24,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.36 : 43,368.50 = 17,999.40 : x
  2. Step 2: Convert to fraction form
    31,435.36/43,368.50 = 17,999.40/x
  3. Step 3: Cross multiply
    31,435.36x = 43,368.50 × 17,999.40
  4. Step 4: Simplify right side
    31,435.36x = 780,606,978.90
  5. Step 5: Solve for x
    x = 780,606,978.90/31,435.36
  6. Step 6: Final answer
    x = 24,832.13

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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.