Home / 28,503.84-42,764.40-13,708.56

Finding the Fourth Proportional to 28,503.84, 42,764.40 and 13,708.56

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Solution

The fourth proportional to 28,503.84, 42,764.40 and 13,708.56 is: 20,567.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.84 : 42,764.40 = 13,708.56 : x
  2. Step 2: Convert to fraction form
    28,503.84/42,764.40 = 13,708.56/x
  3. Step 3: Cross multiply
    28,503.84x = 42,764.40 × 13,708.56
  4. Step 4: Simplify right side
    28,503.84x = 586,238,343.26
  5. Step 5: Solve for x
    x = 586,238,343.26/28,503.84
  6. Step 6: Final answer
    x = 20,567.00

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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.