Home / 30,765.65-42,455.39-17,339.63

Finding the Fourth Proportional to 30,765.65, 42,455.39 and 17,339.63

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Solution

The fourth proportional to 30,765.65, 42,455.39 and 17,339.63 is: 23,928.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.65 : 42,455.39 = 17,339.63 : x
  2. Step 2: Convert to fraction form
    30,765.65/42,455.39 = 17,339.63/x
  3. Step 3: Cross multiply
    30,765.65x = 42,455.39 × 17,339.63
  4. Step 4: Simplify right side
    30,765.65x = 736,160,455.13
  5. Step 5: Solve for x
    x = 736,160,455.13/30,765.65
  6. Step 6: Final answer
    x = 23,928.00

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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.