Home / 19,430.43-26,749.14-18,537.74

Finding the Fourth Proportional to 19,430.43, 26,749.14 and 18,537.74

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Solution

The fourth proportional to 19,430.43, 26,749.14 and 18,537.74 is: 25,520.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.43 : 26,749.14 = 18,537.74 : x
  2. Step 2: Convert to fraction form
    19,430.43/26,749.14 = 18,537.74/x
  3. Step 3: Cross multiply
    19,430.43x = 26,749.14 × 18,537.74
  4. Step 4: Simplify right side
    19,430.43x = 495,868,602.54
  5. Step 5: Solve for x
    x = 495,868,602.54/19,430.43
  6. Step 6: Final answer
    x = 25,520.21

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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.