Home / 27,022.74-37,280.79-15,690.30

Finding the Fourth Proportional to 27,022.74, 37,280.79 and 15,690.30

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Solution

The fourth proportional to 27,022.74, 37,280.79 and 15,690.30 is: 21,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,022.74 : 37,280.79 = 15,690.30 : x
  2. Step 2: Convert to fraction form
    27,022.74/37,280.79 = 15,690.30/x
  3. Step 3: Cross multiply
    27,022.74x = 37,280.79 × 15,690.30
  4. Step 4: Simplify right side
    27,022.74x = 584,946,779.34
  5. Step 5: Solve for x
    x = 584,946,779.34/27,022.74
  6. Step 6: Final answer
    x = 21,646.46

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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.