Home / 28,307.08-42,444.36-11,678.56

Finding the Fourth Proportional to 28,307.08, 42,444.36 and 11,678.56

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Solution

The fourth proportional to 28,307.08, 42,444.36 and 11,678.56 is: 17,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.08 : 42,444.36 = 11,678.56 : x
  2. Step 2: Convert to fraction form
    28,307.08/42,444.36 = 11,678.56/x
  3. Step 3: Cross multiply
    28,307.08x = 42,444.36 × 11,678.56
  4. Step 4: Simplify right side
    28,307.08x = 495,689,004.92
  5. Step 5: Solve for x
    x = 495,689,004.92/28,307.08
  6. Step 6: Final answer
    x = 17,511.13

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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.