Home / 22,813.79-31,477.65-13,860.75

Finding the Fourth Proportional to 22,813.79, 31,477.65 and 13,860.75

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Solution

The fourth proportional to 22,813.79, 31,477.65 and 13,860.75 is: 19,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.79 : 31,477.65 = 13,860.75 : x
  2. Step 2: Convert to fraction form
    22,813.79/31,477.65 = 13,860.75/x
  3. Step 3: Cross multiply
    22,813.79x = 31,477.65 × 13,860.75
  4. Step 4: Simplify right side
    22,813.79x = 436,303,903.30
  5. Step 5: Solve for x
    x = 436,303,903.30/22,813.79
  6. Step 6: Final answer
    x = 19,124.57

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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.