Home / 35,347.09-48,779.10-20,239.99

Finding the Fourth Proportional to 35,347.09, 48,779.10 and 20,239.99

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Solution

The fourth proportional to 35,347.09, 48,779.10 and 20,239.99 is: 27,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,347.09 : 48,779.10 = 20,239.99 : x
  2. Step 2: Convert to fraction form
    35,347.09/48,779.10 = 20,239.99/x
  3. Step 3: Cross multiply
    35,347.09x = 48,779.10 × 20,239.99
  4. Step 4: Simplify right side
    35,347.09x = 987,288,496.21
  5. Step 5: Solve for x
    x = 987,288,496.21/35,347.09
  6. Step 6: Final answer
    x = 27,931.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.