Home / 15,543.32-21,443.36-10,830.33

Finding the Fourth Proportional to 15,543.32, 21,443.36 and 10,830.33

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Solution

The fourth proportional to 15,543.32, 21,443.36 and 10,830.33 is: 14,941.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.32 : 21,443.36 = 10,830.33 : x
  2. Step 2: Convert to fraction form
    15,543.32/21,443.36 = 10,830.33/x
  3. Step 3: Cross multiply
    15,543.32x = 21,443.36 × 10,830.33
  4. Step 4: Simplify right side
    15,543.32x = 232,238,610.96
  5. Step 5: Solve for x
    x = 232,238,610.96/15,543.32
  6. Step 6: Final answer
    x = 14,941.38

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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.