Home / 30,675.85-42,337.16-17,248.21

Finding the Fourth Proportional to 30,675.85, 42,337.16 and 17,248.21

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Solution

The fourth proportional to 30,675.85, 42,337.16 and 17,248.21 is: 23,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.85 : 42,337.16 = 17,248.21 : x
  2. Step 2: Convert to fraction form
    30,675.85/42,337.16 = 17,248.21/x
  3. Step 3: Cross multiply
    30,675.85x = 42,337.16 × 17,248.21
  4. Step 4: Simplify right side
    30,675.85x = 730,240,226.48
  5. Step 5: Solve for x
    x = 730,240,226.48/30,675.85
  6. Step 6: Final answer
    x = 23,805.05

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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.