Home / 35,486.05-48,968.51-20,368.07

Finding the Fourth Proportional to 35,486.05, 48,968.51 and 20,368.07

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Solution

The fourth proportional to 35,486.05, 48,968.51 and 20,368.07 is: 28,106.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,486.05 : 48,968.51 = 20,368.07 : x
  2. Step 2: Convert to fraction form
    35,486.05/48,968.51 = 20,368.07/x
  3. Step 3: Cross multiply
    35,486.05x = 48,968.51 × 20,368.07
  4. Step 4: Simplify right side
    35,486.05x = 997,394,039.48
  5. Step 5: Solve for x
    x = 997,394,039.48/35,486.05
  6. Step 6: Final answer
    x = 28,106.65

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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.