Home / 25,140.72-34,693.07-15,074.72

Finding the Fourth Proportional to 25,140.72, 34,693.07 and 15,074.72

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Solution

The fourth proportional to 25,140.72, 34,693.07 and 15,074.72 is: 20,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.72 : 34,693.07 = 15,074.72 : x
  2. Step 2: Convert to fraction form
    25,140.72/34,693.07 = 15,074.72/x
  3. Step 3: Cross multiply
    25,140.72x = 34,693.07 × 15,074.72
  4. Step 4: Simplify right side
    25,140.72x = 522,988,180.41
  5. Step 5: Solve for x
    x = 522,988,180.41/25,140.72
  6. Step 6: Final answer
    x = 20,802.43

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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.