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Finding the Fourth Proportional to 30,612.36, 45,914.22 and 9,547.50

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Solution

The fourth proportional to 30,612.36, 45,914.22 and 9,547.50 is: 14,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.36 : 45,914.22 = 9,547.50 : x
  2. Step 2: Convert to fraction form
    30,612.36/45,914.22 = 9,547.50/x
  3. Step 3: Cross multiply
    30,612.36x = 45,914.22 × 9,547.50
  4. Step 4: Simplify right side
    30,612.36x = 438,366,015.45
  5. Step 5: Solve for x
    x = 438,366,015.45/30,612.36
  6. Step 6: Final answer
    x = 14,319.90

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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.