Home / 30,616.74-45,925.07-8,430.26

Finding the Fourth Proportional to 30,616.74, 45,925.07 and 8,430.26

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Solution

The fourth proportional to 30,616.74, 45,925.07 and 8,430.26 is: 12,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616.74 : 45,925.07 = 8,430.26 : x
  2. Step 2: Convert to fraction form
    30,616.74/45,925.07 = 8,430.26/x
  3. Step 3: Cross multiply
    30,616.74x = 45,925.07 × 8,430.26
  4. Step 4: Simplify right side
    30,616.74x = 387,160,280.62
  5. Step 5: Solve for x
    x = 387,160,280.62/30,616.74
  6. Step 6: Final answer
    x = 12,645.38

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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.