Home / 28,973.04-39,985.02-16,399.68

Finding the Fourth Proportional to 28,973.04, 39,985.02 and 16,399.68

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Solution

The fourth proportional to 28,973.04, 39,985.02 and 16,399.68 is: 22,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.04 : 39,985.02 = 16,399.68 : x
  2. Step 2: Convert to fraction form
    28,973.04/39,985.02 = 16,399.68/x
  3. Step 3: Cross multiply
    28,973.04x = 39,985.02 × 16,399.68
  4. Step 4: Simplify right side
    28,973.04x = 655,741,532.79
  5. Step 5: Solve for x
    x = 655,741,532.79/28,973.04
  6. Step 6: Final answer
    x = 22,632.82

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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.