Home / 53,153.16-79,729.60-15,713.68

Finding the Fourth Proportional to 53,153.16, 79,729.60 and 15,713.68

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Solution

The fourth proportional to 53,153.16, 79,729.60 and 15,713.68 is: 23,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,153.16 : 79,729.60 = 15,713.68 : x
  2. Step 2: Convert to fraction form
    53,153.16/79,729.60 = 15,713.68/x
  3. Step 3: Cross multiply
    53,153.16x = 79,729.60 × 15,713.68
  4. Step 4: Simplify right side
    53,153.16x = 1,252,845,420.93
  5. Step 5: Solve for x
    x = 1,252,845,420.93/53,153.16
  6. Step 6: Final answer
    x = 23,570.48

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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.