Home / 38,646.45-57,969.81-13,686.51

Finding the Fourth Proportional to 38,646.45, 57,969.81 and 13,686.51

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Solution

The fourth proportional to 38,646.45, 57,969.81 and 13,686.51 is: 20,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.45 : 57,969.81 = 13,686.51 : x
  2. Step 2: Convert to fraction form
    38,646.45/57,969.81 = 13,686.51/x
  3. Step 3: Cross multiply
    38,646.45x = 57,969.81 × 13,686.51
  4. Step 4: Simplify right side
    38,646.45x = 793,404,384.26
  5. Step 5: Solve for x
    x = 793,404,384.26/38,646.45
  6. Step 6: Final answer
    x = 20,529.81

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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.