Home / 28,445.24-39,225.30-18,881.75

Finding the Fourth Proportional to 28,445.24, 39,225.30 and 18,881.75

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Solution

The fourth proportional to 28,445.24, 39,225.30 and 18,881.75 is: 26,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.24 : 39,225.30 = 18,881.75 : x
  2. Step 2: Convert to fraction form
    28,445.24/39,225.30 = 18,881.75/x
  3. Step 3: Cross multiply
    28,445.24x = 39,225.30 × 18,881.75
  4. Step 4: Simplify right side
    28,445.24x = 740,642,308.28
  5. Step 5: Solve for x
    x = 740,642,308.28/28,445.24
  6. Step 6: Final answer
    x = 26,037.48

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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.