Home / 21,975.04-32,991-18,875.08

Finding the Fourth Proportional to 21,975.04, 32,991 and 18,875.08

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Solution

The fourth proportional to 21,975.04, 32,991 and 18,875.08 is: 28,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.04 : 32,991 = 18,875.08 : x
  2. Step 2: Convert to fraction form
    21,975.04/32,991 = 18,875.08/x
  3. Step 3: Cross multiply
    21,975.04x = 32,991 × 18,875.08
  4. Step 4: Simplify right side
    21,975.04x = 622,707,764.28
  5. Step 5: Solve for x
    x = 622,707,764.28/21,975.04
  6. Step 6: Final answer
    x = 28,337.05

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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.