Home / 30,636.02-42,279.81-17,207.66

Finding the Fourth Proportional to 30,636.02, 42,279.81 and 17,207.66

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Solution

The fourth proportional to 30,636.02, 42,279.81 and 17,207.66 is: 23,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.02 : 42,279.81 = 17,207.66 : x
  2. Step 2: Convert to fraction form
    30,636.02/42,279.81 = 17,207.66/x
  3. Step 3: Cross multiply
    30,636.02x = 42,279.81 × 17,207.66
  4. Step 4: Simplify right side
    30,636.02x = 727,536,595.34
  5. Step 5: Solve for x
    x = 727,536,595.34/30,636.02
  6. Step 6: Final answer
    x = 23,747.75

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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.