Home / 30,005.16-45,019.08-12,473.52

Finding the Fourth Proportional to 30,005.16, 45,019.08 and 12,473.52

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Solution

The fourth proportional to 30,005.16, 45,019.08 and 12,473.52 is: 18,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.16 : 45,019.08 = 12,473.52 : x
  2. Step 2: Convert to fraction form
    30,005.16/45,019.08 = 12,473.52/x
  3. Step 3: Cross multiply
    30,005.16x = 45,019.08 × 12,473.52
  4. Step 4: Simplify right side
    30,005.16x = 561,546,394.76
  5. Step 5: Solve for x
    x = 561,546,394.76/30,005.16
  6. Step 6: Final answer
    x = 18,714.99

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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.