Home / 28,707.84-43,068.63-13,899.45

Finding the Fourth Proportional to 28,707.84, 43,068.63 and 13,899.45

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Solution

The fourth proportional to 28,707.84, 43,068.63 and 13,899.45 is: 20,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.84 : 43,068.63 = 13,899.45 : x
  2. Step 2: Convert to fraction form
    28,707.84/43,068.63 = 13,899.45/x
  3. Step 3: Cross multiply
    28,707.84x = 43,068.63 × 13,899.45
  4. Step 4: Simplify right side
    28,707.84x = 598,630,269.25
  5. Step 5: Solve for x
    x = 598,630,269.25/28,707.84
  6. Step 6: Final answer
    x = 20,852.50

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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.