Home / 30,436.59-45,645.53-11,715.15

Finding the Fourth Proportional to 30,436.59, 45,645.53 and 11,715.15

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Solution

The fourth proportional to 30,436.59, 45,645.53 and 11,715.15 is: 17,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.59 : 45,645.53 = 11,715.15 : x
  2. Step 2: Convert to fraction form
    30,436.59/45,645.53 = 11,715.15/x
  3. Step 3: Cross multiply
    30,436.59x = 45,645.53 × 11,715.15
  4. Step 4: Simplify right side
    30,436.59x = 534,744,172.20
  5. Step 5: Solve for x
    x = 534,744,172.20/30,436.59
  6. Step 6: Final answer
    x = 17,569.12

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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.