Home / 38,957.31-58,400.88-13,991.49

Finding the Fourth Proportional to 38,957.31, 58,400.88 and 13,991.49

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Solution

The fourth proportional to 38,957.31, 58,400.88 and 13,991.49 is: 20,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.31 : 58,400.88 = 13,991.49 : x
  2. Step 2: Convert to fraction form
    38,957.31/58,400.88 = 13,991.49/x
  3. Step 3: Cross multiply
    38,957.31x = 58,400.88 × 13,991.49
  4. Step 4: Simplify right side
    38,957.31x = 817,115,328.51
  5. Step 5: Solve for x
    x = 817,115,328.51/38,957.31
  6. Step 6: Final answer
    x = 20,974.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.