Home / 39,487.05-54,490.48-21,582.67

Finding the Fourth Proportional to 39,487.05, 54,490.48 and 21,582.67

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Solution

The fourth proportional to 39,487.05, 54,490.48 and 21,582.67 is: 29,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.05 : 54,490.48 = 21,582.67 : x
  2. Step 2: Convert to fraction form
    39,487.05/54,490.48 = 21,582.67/x
  3. Step 3: Cross multiply
    39,487.05x = 54,490.48 × 21,582.67
  4. Step 4: Simplify right side
    39,487.05x = 1,176,050,047.98
  5. Step 5: Solve for x
    x = 1,176,050,047.98/39,487.05
  6. Step 6: Final answer
    x = 29,783.18

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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.