Home / 30,477.13-45,715.70-12,934.66

Finding the Fourth Proportional to 30,477.13, 45,715.70 and 12,934.66

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Solution

The fourth proportional to 30,477.13, 45,715.70 and 12,934.66 is: 19,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.13 : 45,715.70 = 12,934.66 : x
  2. Step 2: Convert to fraction form
    30,477.13/45,715.70 = 12,934.66/x
  3. Step 3: Cross multiply
    30,477.13x = 45,715.70 × 12,934.66
  4. Step 4: Simplify right side
    30,477.13x = 591,317,036.16
  5. Step 5: Solve for x
    x = 591,317,036.16/30,477.13
  6. Step 6: Final answer
    x = 19,401.99

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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.