Home / 20,527.04-28,322.08-12,566.40

Finding the Fourth Proportional to 20,527.04, 28,322.08 and 12,566.40

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Solution

The fourth proportional to 20,527.04, 28,322.08 and 12,566.40 is: 17,338.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.04 : 28,322.08 = 12,566.40 : x
  2. Step 2: Convert to fraction form
    20,527.04/28,322.08 = 12,566.40/x
  3. Step 3: Cross multiply
    20,527.04x = 28,322.08 × 12,566.40
  4. Step 4: Simplify right side
    20,527.04x = 355,906,586.11
  5. Step 5: Solve for x
    x = 355,906,586.11/20,527.04
  6. Step 6: Final answer
    x = 17,338.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.