Home / 31,525.07-43,502.47-18,779.18

Finding the Fourth Proportional to 31,525.07, 43,502.47 and 18,779.18

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Solution

The fourth proportional to 31,525.07, 43,502.47 and 18,779.18 is: 25,914.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.07 : 43,502.47 = 18,779.18 : x
  2. Step 2: Convert to fraction form
    31,525.07/43,502.47 = 18,779.18/x
  3. Step 3: Cross multiply
    31,525.07x = 43,502.47 × 18,779.18
  4. Step 4: Simplify right side
    31,525.07x = 816,940,450.11
  5. Step 5: Solve for x
    x = 816,940,450.11/31,525.07
  6. Step 6: Final answer
    x = 25,914.00

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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.