Home / 30,862.68-42,590.30-17,438.28

Finding the Fourth Proportional to 30,862.68, 42,590.30 and 17,438.28

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Solution

The fourth proportional to 30,862.68, 42,590.30 and 17,438.28 is: 24,064.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.68 : 42,590.30 = 17,438.28 : x
  2. Step 2: Convert to fraction form
    30,862.68/42,590.30 = 17,438.28/x
  3. Step 3: Cross multiply
    30,862.68x = 42,590.30 × 17,438.28
  4. Step 4: Simplify right side
    30,862.68x = 742,701,576.68
  5. Step 5: Solve for x
    x = 742,701,576.68/30,862.68
  6. Step 6: Final answer
    x = 24,064.71

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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.