Home / 36,437.04-54,605.08-20,821.68

Finding the Fourth Proportional to 36,437.04, 54,605.08 and 20,821.68

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Solution

The fourth proportional to 36,437.04, 54,605.08 and 20,821.68 is: 31,203.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,437.04 : 54,605.08 = 20,821.68 : x
  2. Step 2: Convert to fraction form
    36,437.04/54,605.08 = 20,821.68/x
  3. Step 3: Cross multiply
    36,437.04x = 54,605.08 × 20,821.68
  4. Step 4: Simplify right side
    36,437.04x = 1,136,969,502.13
  5. Step 5: Solve for x
    x = 1,136,969,502.13/36,437.04
  6. Step 6: Final answer
    x = 31,203.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.