Home / 30,567.13-42,184.20-17,139.76

Finding the Fourth Proportional to 30,567.13, 42,184.20 and 17,139.76

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Solution

The fourth proportional to 30,567.13, 42,184.20 and 17,139.76 is: 23,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.13 : 42,184.20 = 17,139.76 : x
  2. Step 2: Convert to fraction form
    30,567.13/42,184.20 = 17,139.76/x
  3. Step 3: Cross multiply
    30,567.13x = 42,184.20 × 17,139.76
  4. Step 4: Simplify right side
    30,567.13x = 723,027,063.79
  5. Step 5: Solve for x
    x = 723,027,063.79/30,567.13
  6. Step 6: Final answer
    x = 23,653.74

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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.