Home / 28,285.86-42,446.69-15,814.07

Finding the Fourth Proportional to 28,285.86, 42,446.69 and 15,814.07

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Solution

The fourth proportional to 28,285.86, 42,446.69 and 15,814.07 is: 23,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.86 : 42,446.69 = 15,814.07 : x
  2. Step 2: Convert to fraction form
    28,285.86/42,446.69 = 15,814.07/x
  3. Step 3: Cross multiply
    28,285.86x = 42,446.69 × 15,814.07
  4. Step 4: Simplify right side
    28,285.86x = 671,254,635.62
  5. Step 5: Solve for x
    x = 671,254,635.62/28,285.86
  6. Step 6: Final answer
    x = 23,731.10

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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.