Home / 39,582.18-54,624.65-21,678.89

Finding the Fourth Proportional to 39,582.18, 54,624.65 and 21,678.89

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Solution

The fourth proportional to 39,582.18, 54,624.65 and 21,678.89 is: 29,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,582.18 : 54,624.65 = 21,678.89 : x
  2. Step 2: Convert to fraction form
    39,582.18/54,624.65 = 21,678.89/x
  3. Step 3: Cross multiply
    39,582.18x = 54,624.65 × 21,678.89
  4. Step 4: Simplify right side
    39,582.18x = 1,184,201,397.12
  5. Step 5: Solve for x
    x = 1,184,201,397.12/39,582.18
  6. Step 6: Final answer
    x = 29,917.54

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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.