Home / 51,019.82-70,403.30-28,357.03

Finding the Fourth Proportional to 51,019.82, 70,403.30 and 28,357.03

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Solution

The fourth proportional to 51,019.82, 70,403.30 and 28,357.03 is: 39,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.82 : 70,403.30 = 28,357.03 : x
  2. Step 2: Convert to fraction form
    51,019.82/70,403.30 = 28,357.03/x
  3. Step 3: Cross multiply
    51,019.82x = 70,403.30 × 28,357.03
  4. Step 4: Simplify right side
    51,019.82x = 1,996,428,172.41
  5. Step 5: Solve for x
    x = 1,996,428,172.41/51,019.82
  6. Step 6: Final answer
    x = 39,130.45

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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.