Home / 28,313.96-39,073.70-15,567.69

Finding the Fourth Proportional to 28,313.96, 39,073.70 and 15,567.69

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Solution

The fourth proportional to 28,313.96, 39,073.70 and 15,567.69 is: 21,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.96 : 39,073.70 = 15,567.69 : x
  2. Step 2: Convert to fraction form
    28,313.96/39,073.70 = 15,567.69/x
  3. Step 3: Cross multiply
    28,313.96x = 39,073.70 × 15,567.69
  4. Step 4: Simplify right side
    28,313.96x = 608,287,287.67
  5. Step 5: Solve for x
    x = 608,287,287.67/28,313.96
  6. Step 6: Final answer
    x = 21,483.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.