Home / 28,062.48-42,079.70-9,335.98

Finding the Fourth Proportional to 28,062.48, 42,079.70 and 9,335.98

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Solution

The fourth proportional to 28,062.48, 42,079.70 and 9,335.98 is: 13,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.48 : 42,079.70 = 9,335.98 : x
  2. Step 2: Convert to fraction form
    28,062.48/42,079.70 = 9,335.98/x
  3. Step 3: Cross multiply
    28,062.48x = 42,079.70 × 9,335.98
  4. Step 4: Simplify right side
    28,062.48x = 392,855,431.89
  5. Step 5: Solve for x
    x = 392,855,431.89/28,062.48
  6. Step 6: Final answer
    x = 13,999.32

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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.