Home / 37,989.12-52,424.70-20,994.51

Finding the Fourth Proportional to 37,989.12, 52,424.70 and 20,994.51

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Solution

The fourth proportional to 37,989.12, 52,424.70 and 20,994.51 is: 28,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.12 : 52,424.70 = 20,994.51 : x
  2. Step 2: Convert to fraction form
    37,989.12/52,424.70 = 20,994.51/x
  3. Step 3: Cross multiply
    37,989.12x = 52,424.70 × 20,994.51
  4. Step 4: Simplify right side
    37,989.12x = 1,100,630,888.40
  5. Step 5: Solve for x
    x = 1,100,630,888.40/37,989.12
  6. Step 6: Final answer
    x = 28,972.27

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Double scale
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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.