Home / 30,708.99-42,380.55-17,281.53

Finding the Fourth Proportional to 30,708.99, 42,380.55 and 17,281.53

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Solution

The fourth proportional to 30,708.99, 42,380.55 and 17,281.53 is: 23,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708.99 : 42,380.55 = 17,281.53 : x
  2. Step 2: Convert to fraction form
    30,708.99/42,380.55 = 17,281.53/x
  3. Step 3: Cross multiply
    30,708.99x = 42,380.55 × 17,281.53
  4. Step 4: Simplify right side
    30,708.99x = 732,400,746.24
  5. Step 5: Solve for x
    x = 732,400,746.24/30,708.99
  6. Step 6: Final answer
    x = 23,849.72

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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.