Home / 31,628.13-43,646.81-19,055.31

Finding the Fourth Proportional to 31,628.13, 43,646.81 and 19,055.31

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Solution

The fourth proportional to 31,628.13, 43,646.81 and 19,055.31 is: 26,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,628.13 : 43,646.81 = 19,055.31 : x
  2. Step 2: Convert to fraction form
    31,628.13/43,646.81 = 19,055.31/x
  3. Step 3: Cross multiply
    31,628.13x = 43,646.81 × 19,055.31
  4. Step 4: Simplify right side
    31,628.13x = 831,703,495.06
  5. Step 5: Solve for x
    x = 831,703,495.06/31,628.13
  6. Step 6: Final answer
    x = 26,296.32

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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.