Home / 20,572.07-30,853.29-5,782.40

Finding the Fourth Proportional to 20,572.07, 30,853.29 and 5,782.40

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Solution

The fourth proportional to 20,572.07, 30,853.29 and 5,782.40 is: 8,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.07 : 30,853.29 = 5,782.40 : x
  2. Step 2: Convert to fraction form
    20,572.07/30,853.29 = 5,782.40/x
  3. Step 3: Cross multiply
    20,572.07x = 30,853.29 × 5,782.40
  4. Step 4: Simplify right side
    20,572.07x = 178,406,064.10
  5. Step 5: Solve for x
    x = 178,406,064.10/20,572.07
  6. Step 6: Final answer
    x = 8,672.25

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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.