Home / 15,430.80-23,142.59-4,338.55

Finding the Fourth Proportional to 15,430.80, 23,142.59 and 4,338.55

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Solution

The fourth proportional to 15,430.80, 23,142.59 and 4,338.55 is: 6,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.80 : 23,142.59 = 4,338.55 : x
  2. Step 2: Convert to fraction form
    15,430.80/23,142.59 = 4,338.55/x
  3. Step 3: Cross multiply
    15,430.80x = 23,142.59 × 4,338.55
  4. Step 4: Simplify right side
    15,430.80x = 100,405,283.84
  5. Step 5: Solve for x
    x = 100,405,283.84/15,430.80
  6. Step 6: Final answer
    x = 6,506.81

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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.