Home / 53,004.40-79,506.04-13,561.20

Finding the Fourth Proportional to 53,004.40, 79,506.04 and 13,561.20

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Solution

The fourth proportional to 53,004.40, 79,506.04 and 13,561.20 is: 20,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,004.40 : 79,506.04 = 13,561.20 : x
  2. Step 2: Convert to fraction form
    53,004.40/79,506.04 = 13,561.20/x
  3. Step 3: Cross multiply
    53,004.40x = 79,506.04 × 13,561.20
  4. Step 4: Simplify right side
    53,004.40x = 1,078,197,309.65
  5. Step 5: Solve for x
    x = 1,078,197,309.65/53,004.40
  6. Step 6: Final answer
    x = 20,341.66

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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.