Home / 53,328.18-79,997.05-13,885.63

Finding the Fourth Proportional to 53,328.18, 79,997.05 and 13,885.63

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Solution

The fourth proportional to 53,328.18, 79,997.05 and 13,885.63 is: 20,829.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,328.18 : 79,997.05 = 13,885.63 : x
  2. Step 2: Convert to fraction form
    53,328.18/79,997.05 = 13,885.63/x
  3. Step 3: Cross multiply
    53,328.18x = 79,997.05 × 13,885.63
  4. Step 4: Simplify right side
    53,328.18x = 1,110,809,437.39
  5. Step 5: Solve for x
    x = 1,110,809,437.39/53,328.18
  6. Step 6: Final answer
    x = 20,829.69

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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.