Home / 30,597.53-42,228.99-16,988.72

Finding the Fourth Proportional to 30,597.53, 42,228.99 and 16,988.72

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Solution

The fourth proportional to 30,597.53, 42,228.99 and 16,988.72 is: 23,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,597.53 : 42,228.99 = 16,988.72 : x
  2. Step 2: Convert to fraction form
    30,597.53/42,228.99 = 16,988.72/x
  3. Step 3: Cross multiply
    30,597.53x = 42,228.99 × 16,988.72
  4. Step 4: Simplify right side
    30,597.53x = 717,416,275.85
  5. Step 5: Solve for x
    x = 717,416,275.85/30,597.53
  6. Step 6: Final answer
    x = 23,446.87

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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.