Home / 39,139.10-53,975.16-26,394.36

Finding the Fourth Proportional to 39,139.10, 53,975.16 and 26,394.36

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Solution

The fourth proportional to 39,139.10, 53,975.16 and 26,394.36 is: 36,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.10 : 53,975.16 = 26,394.36 : x
  2. Step 2: Convert to fraction form
    39,139.10/53,975.16 = 26,394.36/x
  3. Step 3: Cross multiply
    39,139.10x = 53,975.16 × 26,394.36
  4. Step 4: Simplify right side
    39,139.10x = 1,424,639,601.69
  5. Step 5: Solve for x
    x = 1,424,639,601.69/39,139.10
  6. Step 6: Final answer
    x = 36,399.40

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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.