Home / 28,157.66-38,867.30-16,225.76

Finding the Fourth Proportional to 28,157.66, 38,867.30 and 16,225.76

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Solution

The fourth proportional to 28,157.66, 38,867.30 and 16,225.76 is: 22,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.66 : 38,867.30 = 16,225.76 : x
  2. Step 2: Convert to fraction form
    28,157.66/38,867.30 = 16,225.76/x
  3. Step 3: Cross multiply
    28,157.66x = 38,867.30 × 16,225.76
  4. Step 4: Simplify right side
    28,157.66x = 630,651,206.18
  5. Step 5: Solve for x
    x = 630,651,206.18/28,157.66
  6. Step 6: Final answer
    x = 22,397.15

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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.