Home / 25,438.84-38,157.67-6,720.19

Finding the Fourth Proportional to 25,438.84, 38,157.67 and 6,720.19

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Solution

The fourth proportional to 25,438.84, 38,157.67 and 6,720.19 is: 10,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,438.84 : 38,157.67 = 6,720.19 : x
  2. Step 2: Convert to fraction form
    25,438.84/38,157.67 = 6,720.19/x
  3. Step 3: Cross multiply
    25,438.84x = 38,157.67 × 6,720.19
  4. Step 4: Simplify right side
    25,438.84x = 256,426,792.36
  5. Step 5: Solve for x
    x = 256,426,792.36/25,438.84
  6. Step 6: Final answer
    x = 10,080.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.