Home / 28,905.42-39,888.63-16,158.63

Finding the Fourth Proportional to 28,905.42, 39,888.63 and 16,158.63

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Solution

The fourth proportional to 28,905.42, 39,888.63 and 16,158.63 is: 22,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.42 : 39,888.63 = 16,158.63 : x
  2. Step 2: Convert to fraction form
    28,905.42/39,888.63 = 16,158.63/x
  3. Step 3: Cross multiply
    28,905.42x = 39,888.63 × 16,158.63
  4. Step 4: Simplify right side
    28,905.42x = 644,545,613.38
  5. Step 5: Solve for x
    x = 644,545,613.38/28,905.42
  6. Step 6: Final answer
    x = 22,298.43

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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.