Home / 28,117.82-42,176.73-7,341.32

Finding the Fourth Proportional to 28,117.82, 42,176.73 and 7,341.32

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Solution

The fourth proportional to 28,117.82, 42,176.73 and 7,341.32 is: 11,011.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.82 : 42,176.73 = 7,341.32 : x
  2. Step 2: Convert to fraction form
    28,117.82/42,176.73 = 7,341.32/x
  3. Step 3: Cross multiply
    28,117.82x = 42,176.73 × 7,341.32
  4. Step 4: Simplify right side
    28,117.82x = 309,632,871.48
  5. Step 5: Solve for x
    x = 309,632,871.48/28,117.82
  6. Step 6: Final answer
    x = 11,011.98

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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.