Home / 15,430.90-23,147.56-4,338.50

Finding the Fourth Proportional to 15,430.90, 23,147.56 and 4,338.50

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Solution

The fourth proportional to 15,430.90, 23,147.56 and 4,338.50 is: 6,508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.90 : 23,147.56 = 4,338.50 : x
  2. Step 2: Convert to fraction form
    15,430.90/23,147.56 = 4,338.50/x
  3. Step 3: Cross multiply
    15,430.90x = 23,147.56 × 4,338.50
  4. Step 4: Simplify right side
    15,430.90x = 100,425,689.06
  5. Step 5: Solve for x
    x = 100,425,689.06/15,430.90
  6. Step 6: Final answer
    x = 6,508.09

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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.