Home / 15,430.23-23,141.70-7,105.05

Finding the Fourth Proportional to 15,430.23, 23,141.70 and 7,105.05

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Solution

The fourth proportional to 15,430.23, 23,141.70 and 7,105.05 is: 10,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.23 : 23,141.70 = 7,105.05 : x
  2. Step 2: Convert to fraction form
    15,430.23/23,141.70 = 7,105.05/x
  3. Step 3: Cross multiply
    15,430.23x = 23,141.70 × 7,105.05
  4. Step 4: Simplify right side
    15,430.23x = 164,422,935.59
  5. Step 5: Solve for x
    x = 164,422,935.59/15,430.23
  6. Step 6: Final answer
    x = 10,655.90

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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.