Home / 21,045.69-29,033.04-12,542.91

Finding the Fourth Proportional to 21,045.69, 29,033.04 and 12,542.91

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Solution

The fourth proportional to 21,045.69, 29,033.04 and 12,542.91 is: 17,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.69 : 29,033.04 = 12,542.91 : x
  2. Step 2: Convert to fraction form
    21,045.69/29,033.04 = 12,542.91/x
  3. Step 3: Cross multiply
    21,045.69x = 29,033.04 × 12,542.91
  4. Step 4: Simplify right side
    21,045.69x = 364,158,807.75
  5. Step 5: Solve for x
    x = 364,158,807.75/21,045.69
  6. Step 6: Final answer
    x = 17,303.25

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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.