Home / 30,687.17-42,355.40-17,946.27

Finding the Fourth Proportional to 30,687.17, 42,355.40 and 17,946.27

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Solution

The fourth proportional to 30,687.17, 42,355.40 and 17,946.27 is: 24,770.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.17 : 42,355.40 = 17,946.27 : x
  2. Step 2: Convert to fraction form
    30,687.17/42,355.40 = 17,946.27/x
  3. Step 3: Cross multiply
    30,687.17x = 42,355.40 × 17,946.27
  4. Step 4: Simplify right side
    30,687.17x = 760,121,354.63
  5. Step 5: Solve for x
    x = 760,121,354.63/30,687.17
  6. Step 6: Final answer
    x = 24,770.01

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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.