Home / 28,333.18-42,509.00-13,543.25

Finding the Fourth Proportional to 28,333.18, 42,509.00 and 13,543.25

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Solution

The fourth proportional to 28,333.18, 42,509.00 and 13,543.25 is: 20,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.18 : 42,509.00 = 13,543.25 : x
  2. Step 2: Convert to fraction form
    28,333.18/42,509.00 = 13,543.25/x
  3. Step 3: Cross multiply
    28,333.18x = 42,509.00 × 13,543.25
  4. Step 4: Simplify right side
    28,333.18x = 575,710,074.68
  5. Step 5: Solve for x
    x = 575,710,074.68/28,333.18
  6. Step 6: Final answer
    x = 20,319.29

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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.