Home / 28,430.28-42,655.26-9,723.50

Finding the Fourth Proportional to 28,430.28, 42,655.26 and 9,723.50

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Solution

The fourth proportional to 28,430.28, 42,655.26 and 9,723.50 is: 14,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.28 : 42,655.26 = 9,723.50 : x
  2. Step 2: Convert to fraction form
    28,430.28/42,655.26 = 9,723.50/x
  3. Step 3: Cross multiply
    28,430.28x = 42,655.26 × 9,723.50
  4. Step 4: Simplify right side
    28,430.28x = 414,758,420.61
  5. Step 5: Solve for x
    x = 414,758,420.61/28,430.28
  6. Step 6: Final answer
    x = 14,588.62

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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.