Home / 25,431.98-38,157.18-15,457.13

Finding the Fourth Proportional to 25,431.98, 38,157.18 and 15,457.13

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Solution

The fourth proportional to 25,431.98, 38,157.18 and 15,457.13 is: 23,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.98 : 38,157.18 = 15,457.13 : x
  2. Step 2: Convert to fraction form
    25,431.98/38,157.18 = 15,457.13/x
  3. Step 3: Cross multiply
    25,431.98x = 38,157.18 × 15,457.13
  4. Step 4: Simplify right side
    25,431.98x = 589,800,386.03
  5. Step 5: Solve for x
    x = 589,800,386.03/25,431.98
  6. Step 6: Final answer
    x = 23,191.29

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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.