Home / 30,281.04-45,364.32-17,142.84

Finding the Fourth Proportional to 30,281.04, 45,364.32 and 17,142.84

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Solution

The fourth proportional to 30,281.04, 45,364.32 and 17,142.84 is: 25,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.04 : 45,364.32 = 17,142.84 : x
  2. Step 2: Convert to fraction form
    30,281.04/45,364.32 = 17,142.84/x
  3. Step 3: Cross multiply
    30,281.04x = 45,364.32 × 17,142.84
  4. Step 4: Simplify right side
    30,281.04x = 777,673,279.47
  5. Step 5: Solve for x
    x = 777,673,279.47/30,281.04
  6. Step 6: Final answer
    x = 25,681.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.