Home / 22,784.02-31,442.04-12,712.89

Finding the Fourth Proportional to 22,784.02, 31,442.04 and 12,712.89

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Solution

The fourth proportional to 22,784.02, 31,442.04 and 12,712.89 is: 17,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,784.02 : 31,442.04 = 12,712.89 : x
  2. Step 2: Convert to fraction form
    22,784.02/31,442.04 = 12,712.89/x
  3. Step 3: Cross multiply
    22,784.02x = 31,442.04 × 12,712.89
  4. Step 4: Simplify right side
    22,784.02x = 399,719,030.31
  5. Step 5: Solve for x
    x = 399,719,030.31/22,784.02
  6. Step 6: Final answer
    x = 17,543.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.