Home / 22,779.04-31,438.53-13,824.81

Finding the Fourth Proportional to 22,779.04, 31,438.53 and 13,824.81

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Solution

The fourth proportional to 22,779.04, 31,438.53 and 13,824.81 is: 19,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.04 : 31,438.53 = 13,824.81 : x
  2. Step 2: Convert to fraction form
    22,779.04/31,438.53 = 13,824.81/x
  3. Step 3: Cross multiply
    22,779.04x = 31,438.53 × 13,824.81
  4. Step 4: Simplify right side
    22,779.04x = 434,631,546.74
  5. Step 5: Solve for x
    x = 434,631,546.74/22,779.04
  6. Step 6: Final answer
    x = 19,080.33

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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.