Home / 21,285.02-31,923.88-5,699

Finding the Fourth Proportional to 21,285.02, 31,923.88 and 5,699

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Solution

The fourth proportional to 21,285.02, 31,923.88 and 5,699 is: 8,547.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.02 : 31,923.88 = 5,699 : x
  2. Step 2: Convert to fraction form
    21,285.02/31,923.88 = 5,699/x
  3. Step 3: Cross multiply
    21,285.02x = 31,923.88 × 5,699
  4. Step 4: Simplify right side
    21,285.02x = 181,934,192.12
  5. Step 5: Solve for x
    x = 181,934,192.12/21,285.02
  6. Step 6: Final answer
    x = 8,547.52

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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.