Home / 35,730.40-53,565.36-13,531.54

Finding the Fourth Proportional to 35,730.40, 53,565.36 and 13,531.54

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Solution

The fourth proportional to 35,730.40, 53,565.36 and 13,531.54 is: 20,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,730.40 : 53,565.36 = 13,531.54 : x
  2. Step 2: Convert to fraction form
    35,730.40/53,565.36 = 13,531.54/x
  3. Step 3: Cross multiply
    35,730.40x = 53,565.36 × 13,531.54
  4. Step 4: Simplify right side
    35,730.40x = 724,821,811.45
  5. Step 5: Solve for x
    x = 724,821,811.45/35,730.40
  6. Step 6: Final answer
    x = 20,285.86

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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.