Home / 40,051.95-55,272.86-21,903.74

Finding the Fourth Proportional to 40,051.95, 55,272.86 and 21,903.74

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Solution

The fourth proportional to 40,051.95, 55,272.86 and 21,903.74 is: 30,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,051.95 : 55,272.86 = 21,903.74 : x
  2. Step 2: Convert to fraction form
    40,051.95/55,272.86 = 21,903.74/x
  3. Step 3: Cross multiply
    40,051.95x = 55,272.86 × 21,903.74
  4. Step 4: Simplify right side
    40,051.95x = 1,210,681,968.61
  5. Step 5: Solve for x
    x = 1,210,681,968.61/40,051.95
  6. Step 6: Final answer
    x = 30,227.79

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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.