Home / 18,829.10-28,242.96-5,681.13

Finding the Fourth Proportional to 18,829.10, 28,242.96 and 5,681.13

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Solution

The fourth proportional to 18,829.10, 28,242.96 and 5,681.13 is: 8,521.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.10 : 28,242.96 = 5,681.13 : x
  2. Step 2: Convert to fraction form
    18,829.10/28,242.96 = 5,681.13/x
  3. Step 3: Cross multiply
    18,829.10x = 28,242.96 × 5,681.13
  4. Step 4: Simplify right side
    18,829.10x = 160,451,927.34
  5. Step 5: Solve for x
    x = 160,451,927.34/18,829.10
  6. Step 6: Final answer
    x = 8,521.49

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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.