Home / 15,430.79-23,146.19-4,338.60

Finding the Fourth Proportional to 15,430.79, 23,146.19 and 4,338.60

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Solution

The fourth proportional to 15,430.79, 23,146.19 and 4,338.60 is: 6,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.79 : 23,146.19 = 4,338.60 : x
  2. Step 2: Convert to fraction form
    15,430.79/23,146.19 = 4,338.60/x
  3. Step 3: Cross multiply
    15,430.79x = 23,146.19 × 4,338.60
  4. Step 4: Simplify right side
    15,430.79x = 100,422,038.24
  5. Step 5: Solve for x
    x = 100,422,038.24/15,430.79
  6. Step 6: Final answer
    x = 6,507.90

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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.