Home / 53,002.40-79,503.04-13,559.20

Finding the Fourth Proportional to 53,002.40, 79,503.04 and 13,559.20

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Solution

The fourth proportional to 53,002.40, 79,503.04 and 13,559.20 is: 20,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.40 : 79,503.04 = 13,559.20 : x
  2. Step 2: Convert to fraction form
    53,002.40/79,503.04 = 13,559.20/x
  3. Step 3: Cross multiply
    53,002.40x = 79,503.04 × 13,559.20
  4. Step 4: Simplify right side
    53,002.40x = 1,077,997,619.97
  5. Step 5: Solve for x
    x = 1,077,997,619.97/53,002.40
  6. Step 6: Final answer
    x = 20,338.66

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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.