Home / 39,146.09-53,947.03-38,426.34

Finding the Fourth Proportional to 39,146.09, 53,947.03 and 38,426.34

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Solution

The fourth proportional to 39,146.09, 53,947.03 and 38,426.34 is: 52,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,146.09 : 53,947.03 = 38,426.34 : x
  2. Step 2: Convert to fraction form
    39,146.09/53,947.03 = 38,426.34/x
  3. Step 3: Cross multiply
    39,146.09x = 53,947.03 × 38,426.34
  4. Step 4: Simplify right side
    39,146.09x = 2,072,986,916.77
  5. Step 5: Solve for x
    x = 2,072,986,916.77/39,146.09
  6. Step 6: Final answer
    x = 52,955.15

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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.