Home / 37,118.10-51,214.14-20,985.74

Finding the Fourth Proportional to 37,118.10, 51,214.14 and 20,985.74

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Solution

The fourth proportional to 37,118.10, 51,214.14 and 20,985.74 is: 28,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,118.10 : 51,214.14 = 20,985.74 : x
  2. Step 2: Convert to fraction form
    37,118.10/51,214.14 = 20,985.74/x
  3. Step 3: Cross multiply
    37,118.10x = 51,214.14 × 20,985.74
  4. Step 4: Simplify right side
    37,118.10x = 1,074,766,626.36
  5. Step 5: Solve for x
    x = 1,074,766,626.36/37,118.10
  6. Step 6: Final answer
    x = 28,955.32

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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.