Home / 39,862.40-55,009.44-21,959.08

Finding the Fourth Proportional to 39,862.40, 55,009.44 and 21,959.08

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Solution

The fourth proportional to 39,862.40, 55,009.44 and 21,959.08 is: 30,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.40 : 55,009.44 = 21,959.08 : x
  2. Step 2: Convert to fraction form
    39,862.40/55,009.44 = 21,959.08/x
  3. Step 3: Cross multiply
    39,862.40x = 55,009.44 × 21,959.08
  4. Step 4: Simplify right side
    39,862.40x = 1,207,956,693.72
  5. Step 5: Solve for x
    x = 1,207,956,693.72/39,862.40
  6. Step 6: Final answer
    x = 30,303.16

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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.