Home / 28,615.81-39,487.66-16,038.13

Finding the Fourth Proportional to 28,615.81, 39,487.66 and 16,038.13

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Solution

The fourth proportional to 28,615.81, 39,487.66 and 16,038.13 is: 22,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.81 : 39,487.66 = 16,038.13 : x
  2. Step 2: Convert to fraction form
    28,615.81/39,487.66 = 16,038.13/x
  3. Step 3: Cross multiply
    28,615.81x = 39,487.66 × 16,038.13
  4. Step 4: Simplify right side
    28,615.81x = 633,308,224.48
  5. Step 5: Solve for x
    x = 633,308,224.48/28,615.81
  6. Step 6: Final answer
    x = 22,131.41

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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.