Home / 28,904.12-39,888.17-16,157.55

Finding the Fourth Proportional to 28,904.12, 39,888.17 and 16,157.55

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Solution

The fourth proportional to 28,904.12, 39,888.17 and 16,157.55 is: 22,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904.12 : 39,888.17 = 16,157.55 : x
  2. Step 2: Convert to fraction form
    28,904.12/39,888.17 = 16,157.55/x
  3. Step 3: Cross multiply
    28,904.12x = 39,888.17 × 16,157.55
  4. Step 4: Simplify right side
    28,904.12x = 644,495,101.18
  5. Step 5: Solve for x
    x = 644,495,101.18/28,904.12
  6. Step 6: Final answer
    x = 22,297.69

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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.