Home / 28,394.48-39,184.80-16,458.72

Finding the Fourth Proportional to 28,394.48, 39,184.80 and 16,458.72

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Solution

The fourth proportional to 28,394.48, 39,184.80 and 16,458.72 is: 22,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.48 : 39,184.80 = 16,458.72 : x
  2. Step 2: Convert to fraction form
    28,394.48/39,184.80 = 16,458.72/x
  3. Step 3: Cross multiply
    28,394.48x = 39,184.80 × 16,458.72
  4. Step 4: Simplify right side
    28,394.48x = 644,931,651.46
  5. Step 5: Solve for x
    x = 644,931,651.46/28,394.48
  6. Step 6: Final answer
    x = 22,713.28

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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.