Home / 20,355.10-30,543.04-9,693.51

Finding the Fourth Proportional to 20,355.10, 30,543.04 and 9,693.51

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Solution

The fourth proportional to 20,355.10, 30,543.04 and 9,693.51 is: 14,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.10 : 30,543.04 = 9,693.51 : x
  2. Step 2: Convert to fraction form
    20,355.10/30,543.04 = 9,693.51/x
  3. Step 3: Cross multiply
    20,355.10x = 30,543.04 × 9,693.51
  4. Step 4: Simplify right side
    20,355.10x = 296,069,161.25
  5. Step 5: Solve for x
    x = 296,069,161.25/20,355.10
  6. Step 6: Final answer
    x = 14,545.21

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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.