Home / 28,473.30-39,287.13-16,530.45

Finding the Fourth Proportional to 28,473.30, 39,287.13 and 16,530.45

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Solution

The fourth proportional to 28,473.30, 39,287.13 and 16,530.45 is: 22,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.30 : 39,287.13 = 16,530.45 : x
  2. Step 2: Convert to fraction form
    28,473.30/39,287.13 = 16,530.45/x
  3. Step 3: Cross multiply
    28,473.30x = 39,287.13 × 16,530.45
  4. Step 4: Simplify right side
    28,473.30x = 649,433,938.11
  5. Step 5: Solve for x
    x = 649,433,938.11/28,473.30
  6. Step 6: Final answer
    x = 22,808.52

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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.