Home / 30,300.75-45,438.71-10,572.66

Finding the Fourth Proportional to 30,300.75, 45,438.71 and 10,572.66

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Solution

The fourth proportional to 30,300.75, 45,438.71 and 10,572.66 is: 15,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,300.75 : 45,438.71 = 10,572.66 : x
  2. Step 2: Convert to fraction form
    30,300.75/45,438.71 = 10,572.66/x
  3. Step 3: Cross multiply
    30,300.75x = 45,438.71 × 10,572.66
  4. Step 4: Simplify right side
    30,300.75x = 480,407,978.81
  5. Step 5: Solve for x
    x = 480,407,978.81/30,300.75
  6. Step 6: Final answer
    x = 15,854.66

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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.