Home / 38,145.13-57,203.65-13,178.77

Finding the Fourth Proportional to 38,145.13, 57,203.65 and 13,178.77

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Solution

The fourth proportional to 38,145.13, 57,203.65 and 13,178.77 is: 19,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.13 : 57,203.65 = 13,178.77 : x
  2. Step 2: Convert to fraction form
    38,145.13/57,203.65 = 13,178.77/x
  3. Step 3: Cross multiply
    38,145.13x = 57,203.65 × 13,178.77
  4. Step 4: Simplify right side
    38,145.13x = 753,873,746.51
  5. Step 5: Solve for x
    x = 753,873,746.51/38,145.13
  6. Step 6: Final answer
    x = 19,763.30

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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.