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Finding the Fourth Proportional to 30,590.13, 45,880.02 and 8,398.35

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Solution

The fourth proportional to 30,590.13, 45,880.02 and 8,398.35 is: 12,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.13 : 45,880.02 = 8,398.35 : x
  2. Step 2: Convert to fraction form
    30,590.13/45,880.02 = 8,398.35/x
  3. Step 3: Cross multiply
    30,590.13x = 45,880.02 × 8,398.35
  4. Step 4: Simplify right side
    30,590.13x = 385,316,465.97
  5. Step 5: Solve for x
    x = 385,316,465.97/30,590.13
  6. Step 6: Final answer
    x = 12,596.10

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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.