Home / 30,588.18-42,216.40-17,164.86

Finding the Fourth Proportional to 30,588.18, 42,216.40 and 17,164.86

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Solution

The fourth proportional to 30,588.18, 42,216.40 and 17,164.86 is: 23,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.18 : 42,216.40 = 17,164.86 : x
  2. Step 2: Convert to fraction form
    30,588.18/42,216.40 = 17,164.86/x
  3. Step 3: Cross multiply
    30,588.18x = 42,216.40 × 17,164.86
  4. Step 4: Simplify right side
    30,588.18x = 724,638,595.70
  5. Step 5: Solve for x
    x = 724,638,595.70/30,588.18
  6. Step 6: Final answer
    x = 23,690.15

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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.