Home / 28,987.32-43,493.36-12,355.19

Finding the Fourth Proportional to 28,987.32, 43,493.36 and 12,355.19

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Solution

The fourth proportional to 28,987.32, 43,493.36 and 12,355.19 is: 18,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.32 : 43,493.36 = 12,355.19 : x
  2. Step 2: Convert to fraction form
    28,987.32/43,493.36 = 12,355.19/x
  3. Step 3: Cross multiply
    28,987.32x = 43,493.36 × 12,355.19
  4. Step 4: Simplify right side
    28,987.32x = 537,368,703.06
  5. Step 5: Solve for x
    x = 537,368,703.06/28,987.32
  6. Step 6: Final answer
    x = 18,538.06

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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.