Home / 19,970.05-27,567.53-12,899.92

Finding the Fourth Proportional to 19,970.05, 27,567.53 and 12,899.92

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Solution

The fourth proportional to 19,970.05, 27,567.53 and 12,899.92 is: 17,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.05 : 27,567.53 = 12,899.92 : x
  2. Step 2: Convert to fraction form
    19,970.05/27,567.53 = 12,899.92/x
  3. Step 3: Cross multiply
    19,970.05x = 27,567.53 × 12,899.92
  4. Step 4: Simplify right side
    19,970.05x = 355,618,931.60
  5. Step 5: Solve for x
    x = 355,618,931.60/19,970.05
  6. Step 6: Final answer
    x = 17,807.61

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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.