Home / 15,620.47-23,430.67-5,090.47

Finding the Fourth Proportional to 15,620.47, 23,430.67 and 5,090.47

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Solution

The fourth proportional to 15,620.47, 23,430.67 and 5,090.47 is: 7,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.47 : 23,430.67 = 5,090.47 : x
  2. Step 2: Convert to fraction form
    15,620.47/23,430.67 = 5,090.47/x
  3. Step 3: Cross multiply
    15,620.47x = 23,430.67 × 5,090.47
  4. Step 4: Simplify right side
    15,620.47x = 119,273,051.41
  5. Step 5: Solve for x
    x = 119,273,051.41/15,620.47
  6. Step 6: Final answer
    x = 7,635.69

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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.