Home / 28,285.08-42,411.36-11,656.59

Finding the Fourth Proportional to 28,285.08, 42,411.36 and 11,656.59

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Solution

The fourth proportional to 28,285.08, 42,411.36 and 11,656.59 is: 17,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.08 : 42,411.36 = 11,656.59 : x
  2. Step 2: Convert to fraction form
    28,285.08/42,411.36 = 11,656.59/x
  3. Step 3: Cross multiply
    28,285.08x = 42,411.36 × 11,656.59
  4. Step 4: Simplify right side
    28,285.08x = 494,371,834.86
  5. Step 5: Solve for x
    x = 494,371,834.86/28,285.08
  6. Step 6: Final answer
    x = 17,478.18

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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.