Home / 19,323.60-28,985.40-5,472.72

Finding the Fourth Proportional to 19,323.60, 28,985.40 and 5,472.72

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Solution

The fourth proportional to 19,323.60, 28,985.40 and 5,472.72 is: 8,209.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.60 : 28,985.40 = 5,472.72 : x
  2. Step 2: Convert to fraction form
    19,323.60/28,985.40 = 5,472.72/x
  3. Step 3: Cross multiply
    19,323.60x = 28,985.40 × 5,472.72
  4. Step 4: Simplify right side
    19,323.60x = 158,628,978.29
  5. Step 5: Solve for x
    x = 158,628,978.29/19,323.60
  6. Step 6: Final answer
    x = 8,209.08

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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.