Home / 25,019.72-34,527.65-13,690.21

Finding the Fourth Proportional to 25,019.72, 34,527.65 and 13,690.21

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Solution

The fourth proportional to 25,019.72, 34,527.65 and 13,690.21 is: 18,892.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,019.72 : 34,527.65 = 13,690.21 : x
  2. Step 2: Convert to fraction form
    25,019.72/34,527.65 = 13,690.21/x
  3. Step 3: Cross multiply
    25,019.72x = 34,527.65 × 13,690.21
  4. Step 4: Simplify right side
    25,019.72x = 472,690,676.71
  5. Step 5: Solve for x
    x = 472,690,676.71/25,019.72
  6. Step 6: Final answer
    x = 18,892.72

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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.