Home / 39,040.33-53,875.01-21,135.18

Finding the Fourth Proportional to 39,040.33, 53,875.01 and 21,135.18

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Solution

The fourth proportional to 39,040.33, 53,875.01 and 21,135.18 is: 29,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040.33 : 53,875.01 = 21,135.18 : x
  2. Step 2: Convert to fraction form
    39,040.33/53,875.01 = 21,135.18/x
  3. Step 3: Cross multiply
    39,040.33x = 53,875.01 × 21,135.18
  4. Step 4: Simplify right side
    39,040.33x = 1,138,657,928.18
  5. Step 5: Solve for x
    x = 1,138,657,928.18/39,040.33
  6. Step 6: Final answer
    x = 29,166.20

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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.