Home / 28,428.66-42,587.57-17,307.76

Finding the Fourth Proportional to 28,428.66, 42,587.57 and 17,307.76

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Solution

The fourth proportional to 28,428.66, 42,587.57 and 17,307.76 is: 25,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.66 : 42,587.57 = 17,307.76 : x
  2. Step 2: Convert to fraction form
    28,428.66/42,587.57 = 17,307.76/x
  3. Step 3: Cross multiply
    28,428.66x = 42,587.57 × 17,307.76
  4. Step 4: Simplify right side
    28,428.66x = 737,095,440.54
  5. Step 5: Solve for x
    x = 737,095,440.54/28,428.66
  6. Step 6: Final answer
    x = 25,927.90

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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.