Home / 30,206.39-45,323.09-15,407.51

Finding the Fourth Proportional to 30,206.39, 45,323.09 and 15,407.51

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Solution

The fourth proportional to 30,206.39, 45,323.09 and 15,407.51 is: 23,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.39 : 45,323.09 = 15,407.51 : x
  2. Step 2: Convert to fraction form
    30,206.39/45,323.09 = 15,407.51/x
  3. Step 3: Cross multiply
    30,206.39x = 45,323.09 × 15,407.51
  4. Step 4: Simplify right side
    30,206.39x = 698,315,658.75
  5. Step 5: Solve for x
    x = 698,315,658.75/30,206.39
  6. Step 6: Final answer
    x = 23,118.15

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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.