Home / 37,422.90-51,643.57-20,655.86

Finding the Fourth Proportional to 37,422.90, 51,643.57 and 20,655.86

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Solution

The fourth proportional to 37,422.90, 51,643.57 and 20,655.86 is: 28,505.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,422.90 : 51,643.57 = 20,655.86 : x
  2. Step 2: Convert to fraction form
    37,422.90/51,643.57 = 20,655.86/x
  3. Step 3: Cross multiply
    37,422.90x = 51,643.57 × 20,655.86
  4. Step 4: Simplify right side
    37,422.90x = 1,066,742,351.82
  5. Step 5: Solve for x
    x = 1,066,742,351.82/37,422.90
  6. Step 6: Final answer
    x = 28,505.07

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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.