Home / 30,018.60-41,426.50-16,590.72

Finding the Fourth Proportional to 30,018.60, 41,426.50 and 16,590.72

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Solution

The fourth proportional to 30,018.60, 41,426.50 and 16,590.72 is: 22,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018.60 : 41,426.50 = 16,590.72 : x
  2. Step 2: Convert to fraction form
    30,018.60/41,426.50 = 16,590.72/x
  3. Step 3: Cross multiply
    30,018.60x = 41,426.50 × 16,590.72
  4. Step 4: Simplify right side
    30,018.60x = 687,295,462.08
  5. Step 5: Solve for x
    x = 687,295,462.08/30,018.60
  6. Step 6: Final answer
    x = 22,895.65

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Half scale
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Double scale
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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.