Home / 30,911.70-42,657.64-17,482.45

Finding the Fourth Proportional to 30,911.70, 42,657.64 and 17,482.45

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Solution

The fourth proportional to 30,911.70, 42,657.64 and 17,482.45 is: 24,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.70 : 42,657.64 = 17,482.45 : x
  2. Step 2: Convert to fraction form
    30,911.70/42,657.64 = 17,482.45/x
  3. Step 3: Cross multiply
    30,911.70x = 42,657.64 × 17,482.45
  4. Step 4: Simplify right side
    30,911.70x = 745,760,058.42
  5. Step 5: Solve for x
    x = 745,760,058.42/30,911.70
  6. Step 6: Final answer
    x = 24,125.49

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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.