Home / 19,715.23-27,200.50-13,004.20

Finding the Fourth Proportional to 19,715.23, 27,200.50 and 13,004.20

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Solution

The fourth proportional to 19,715.23, 27,200.50 and 13,004.20 is: 17,941.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.23 : 27,200.50 = 13,004.20 : x
  2. Step 2: Convert to fraction form
    19,715.23/27,200.50 = 13,004.20/x
  3. Step 3: Cross multiply
    19,715.23x = 27,200.50 × 13,004.20
  4. Step 4: Simplify right side
    19,715.23x = 353,720,742.10
  5. Step 5: Solve for x
    x = 353,720,742.10/19,715.23
  6. Step 6: Final answer
    x = 17,941.50

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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.