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Finding the Fourth Proportional to 36,459.60, 50,319 and 20,547.12

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Solution

The fourth proportional to 36,459.60, 50,319 and 20,547.12 is: 28,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,459.60 : 50,319 = 20,547.12 : x
  2. Step 2: Convert to fraction form
    36,459.60/50,319 = 20,547.12/x
  3. Step 3: Cross multiply
    36,459.60x = 50,319 × 20,547.12
  4. Step 4: Simplify right side
    36,459.60x = 1,033,910,531.28
  5. Step 5: Solve for x
    x = 1,033,910,531.28/36,459.60
  6. Step 6: Final answer
    x = 28,357.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.