Home / 53,007.74-79,511.20-13,564.80

Finding the Fourth Proportional to 53,007.74, 79,511.20 and 13,564.80

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Solution

The fourth proportional to 53,007.74, 79,511.20 and 13,564.80 is: 20,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,007.74 : 79,511.20 = 13,564.80 : x
  2. Step 2: Convert to fraction form
    53,007.74/79,511.20 = 13,564.80/x
  3. Step 3: Cross multiply
    53,007.74x = 79,511.20 × 13,564.80
  4. Step 4: Simplify right side
    53,007.74x = 1,078,553,525.76
  5. Step 5: Solve for x
    x = 1,078,553,525.76/53,007.74
  6. Step 6: Final answer
    x = 20,347.10

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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.