Home / 30,907.13-42,652.87-17,480.57

Finding the Fourth Proportional to 30,907.13, 42,652.87 and 17,480.57

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Solution

The fourth proportional to 30,907.13, 42,652.87 and 17,480.57 is: 24,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.13 : 42,652.87 = 17,480.57 : x
  2. Step 2: Convert to fraction form
    30,907.13/42,652.87 = 17,480.57/x
  3. Step 3: Cross multiply
    30,907.13x = 42,652.87 × 17,480.57
  4. Step 4: Simplify right side
    30,907.13x = 745,596,479.74
  5. Step 5: Solve for x
    x = 745,596,479.74/30,907.13
  6. Step 6: Final answer
    x = 24,123.77

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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.