Home / 28,051.60-42,066.90-12,039.12

Finding the Fourth Proportional to 28,051.60, 42,066.90 and 12,039.12

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Solution

The fourth proportional to 28,051.60, 42,066.90 and 12,039.12 is: 18,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.60 : 42,066.90 = 12,039.12 : x
  2. Step 2: Convert to fraction form
    28,051.60/42,066.90 = 12,039.12/x
  3. Step 3: Cross multiply
    28,051.60x = 42,066.90 × 12,039.12
  4. Step 4: Simplify right side
    28,051.60x = 506,448,246.79
  5. Step 5: Solve for x
    x = 506,448,246.79/28,051.60
  6. Step 6: Final answer
    x = 18,054.17

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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.