Home / 30,937.31-42,671.42-28,393.26

Finding the Fourth Proportional to 30,937.31, 42,671.42 and 28,393.26

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Solution

The fourth proportional to 30,937.31, 42,671.42 and 28,393.26 is: 39,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.31 : 42,671.42 = 28,393.26 : x
  2. Step 2: Convert to fraction form
    30,937.31/42,671.42 = 28,393.26/x
  3. Step 3: Cross multiply
    30,937.31x = 42,671.42 × 28,393.26
  4. Step 4: Simplify right side
    30,937.31x = 1,211,580,722.63
  5. Step 5: Solve for x
    x = 1,211,580,722.63/30,937.31
  6. Step 6: Final answer
    x = 39,162.45

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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.