Home / 28,307.42-39,027.51-18,217.82

Finding the Fourth Proportional to 28,307.42, 39,027.51 and 18,217.82

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Solution

The fourth proportional to 28,307.42, 39,027.51 and 18,217.82 is: 25,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.42 : 39,027.51 = 18,217.82 : x
  2. Step 2: Convert to fraction form
    28,307.42/39,027.51 = 18,217.82/x
  3. Step 3: Cross multiply
    28,307.42x = 39,027.51 × 18,217.82
  4. Step 4: Simplify right side
    28,307.42x = 710,996,152.23
  5. Step 5: Solve for x
    x = 710,996,152.23/28,307.42
  6. Step 6: Final answer
    x = 25,116.95

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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.