Home / 15,931.56-23,900.36-5,258.56

Finding the Fourth Proportional to 15,931.56, 23,900.36 and 5,258.56

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Solution

The fourth proportional to 15,931.56, 23,900.36 and 5,258.56 is: 7,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931.56 : 23,900.36 = 5,258.56 : x
  2. Step 2: Convert to fraction form
    15,931.56/23,900.36 = 5,258.56/x
  3. Step 3: Cross multiply
    15,931.56x = 23,900.36 × 5,258.56
  4. Step 4: Simplify right side
    15,931.56x = 125,681,477.08
  5. Step 5: Solve for x
    x = 125,681,477.08/15,931.56
  6. Step 6: Final answer
    x = 7,888.84

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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.