Home / 25,268.65-34,870.89-13,938.45

Finding the Fourth Proportional to 25,268.65, 34,870.89 and 13,938.45

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Solution

The fourth proportional to 25,268.65, 34,870.89 and 13,938.45 is: 19,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,268.65 : 34,870.89 = 13,938.45 : x
  2. Step 2: Convert to fraction form
    25,268.65/34,870.89 = 13,938.45/x
  3. Step 3: Cross multiply
    25,268.65x = 34,870.89 × 13,938.45
  4. Step 4: Simplify right side
    25,268.65x = 486,046,156.72
  5. Step 5: Solve for x
    x = 486,046,156.72/25,268.65
  6. Step 6: Final answer
    x = 19,235.15

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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.