Home / 39,897.90-55,060.26-21,994.08

Finding the Fourth Proportional to 39,897.90, 55,060.26 and 21,994.08

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Solution

The fourth proportional to 39,897.90, 55,060.26 and 21,994.08 is: 30,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.90 : 55,060.26 = 21,994.08 : x
  2. Step 2: Convert to fraction form
    39,897.90/55,060.26 = 21,994.08/x
  3. Step 3: Cross multiply
    39,897.90x = 55,060.26 × 21,994.08
  4. Step 4: Simplify right side
    39,897.90x = 1,210,999,763.26
  5. Step 5: Solve for x
    x = 1,210,999,763.26/39,897.90
  6. Step 6: Final answer
    x = 30,352.47

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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.