Home / 30,225.84-45,346.05-19,145.04

Finding the Fourth Proportional to 30,225.84, 45,346.05 and 19,145.04

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Solution

The fourth proportional to 30,225.84, 45,346.05 and 19,145.04 is: 28,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.84 : 45,346.05 = 19,145.04 : x
  2. Step 2: Convert to fraction form
    30,225.84/45,346.05 = 19,145.04/x
  3. Step 3: Cross multiply
    30,225.84x = 45,346.05 × 19,145.04
  4. Step 4: Simplify right side
    30,225.84x = 868,151,941.09
  5. Step 5: Solve for x
    x = 868,151,941.09/30,225.84
  6. Step 6: Final answer
    x = 28,722.18

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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.