Home / 53,002.20-79,503.30-13,562.40

Finding the Fourth Proportional to 53,002.20, 79,503.30 and 13,562.40

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Solution

The fourth proportional to 53,002.20, 79,503.30 and 13,562.40 is: 20,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.20 : 79,503.30 = 13,562.40 : x
  2. Step 2: Convert to fraction form
    53,002.20/79,503.30 = 13,562.40/x
  3. Step 3: Cross multiply
    53,002.20x = 79,503.30 × 13,562.40
  4. Step 4: Simplify right side
    53,002.20x = 1,078,255,555.92
  5. Step 5: Solve for x
    x = 1,078,255,555.92/53,002.20
  6. Step 6: Final answer
    x = 20,343.60

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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.