Home / 19,420.50-26,804.71-13,749.35

Finding the Fourth Proportional to 19,420.50, 26,804.71 and 13,749.35

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Solution

The fourth proportional to 19,420.50, 26,804.71 and 13,749.35 is: 18,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.50 : 26,804.71 = 13,749.35 : x
  2. Step 2: Convert to fraction form
    19,420.50/26,804.71 = 13,749.35/x
  3. Step 3: Cross multiply
    19,420.50x = 26,804.71 × 13,749.35
  4. Step 4: Simplify right side
    19,420.50x = 368,547,238.05
  5. Step 5: Solve for x
    x = 368,547,238.05/19,420.50
  6. Step 6: Final answer
    x = 18,977.23

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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.