Home / 32,778.07-45,232.98-20,031.20

Finding the Fourth Proportional to 32,778.07, 45,232.98 and 20,031.20

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Solution

The fourth proportional to 32,778.07, 45,232.98 and 20,031.20 is: 27,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,778.07 : 45,232.98 = 20,031.20 : x
  2. Step 2: Convert to fraction form
    32,778.07/45,232.98 = 20,031.20/x
  3. Step 3: Cross multiply
    32,778.07x = 45,232.98 × 20,031.20
  4. Step 4: Simplify right side
    32,778.07x = 906,070,849.99
  5. Step 5: Solve for x
    x = 906,070,849.99/32,778.07
  6. Step 6: Final answer
    x = 27,642.60

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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.