Home / 30,741.30-42,423.99-17,312.76

Finding the Fourth Proportional to 30,741.30, 42,423.99 and 17,312.76

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Solution

The fourth proportional to 30,741.30, 42,423.99 and 17,312.76 is: 23,892.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,741.30 : 42,423.99 = 17,312.76 : x
  2. Step 2: Convert to fraction form
    30,741.30/42,423.99 = 17,312.76/x
  3. Step 3: Cross multiply
    30,741.30x = 42,423.99 × 17,312.76
  4. Step 4: Simplify right side
    30,741.30x = 734,476,357.11
  5. Step 5: Solve for x
    x = 734,476,357.11/30,741.30
  6. Step 6: Final answer
    x = 23,892.17

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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.