Home / 51,036.43-70,430.21-28,374.71

Finding the Fourth Proportional to 51,036.43, 70,430.21 and 28,374.71

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Solution

The fourth proportional to 51,036.43, 70,430.21 and 28,374.71 is: 39,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,036.43 : 70,430.21 = 28,374.71 : x
  2. Step 2: Convert to fraction form
    51,036.43/70,430.21 = 28,374.71/x
  3. Step 3: Cross multiply
    51,036.43x = 70,430.21 × 28,374.71
  4. Step 4: Simplify right side
    51,036.43x = 1,998,436,396.37
  5. Step 5: Solve for x
    x = 1,998,436,396.37/51,036.43
  6. Step 6: Final answer
    x = 39,157.06

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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.