Home / 30,290.13-45,439.52-9,515.25

Finding the Fourth Proportional to 30,290.13, 45,439.52 and 9,515.25

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Solution

The fourth proportional to 30,290.13, 45,439.52 and 9,515.25 is: 14,274.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.13 : 45,439.52 = 9,515.25 : x
  2. Step 2: Convert to fraction form
    30,290.13/45,439.52 = 9,515.25/x
  3. Step 3: Cross multiply
    30,290.13x = 45,439.52 × 9,515.25
  4. Step 4: Simplify right side
    30,290.13x = 432,368,345.10
  5. Step 5: Solve for x
    x = 432,368,345.10/30,290.13
  6. Step 6: Final answer
    x = 14,274.23

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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.