Home / 30,275.39-45,412.56-13,623.64

Finding the Fourth Proportional to 30,275.39, 45,412.56 and 13,623.64

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Solution

The fourth proportional to 30,275.39, 45,412.56 and 13,623.64 is: 20,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.39 : 45,412.56 = 13,623.64 : x
  2. Step 2: Convert to fraction form
    30,275.39/45,412.56 = 13,623.64/x
  3. Step 3: Cross multiply
    30,275.39x = 45,412.56 × 13,623.64
  4. Step 4: Simplify right side
    30,275.39x = 618,684,368.92
  5. Step 5: Solve for x
    x = 618,684,368.92/30,275.39
  6. Step 6: Final answer
    x = 20,435.22

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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.