Home / 38,943.98-53,742.71-21,038.96

Finding the Fourth Proportional to 38,943.98, 53,742.71 and 21,038.96

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Solution

The fourth proportional to 38,943.98, 53,742.71 and 21,038.96 is: 29,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943.98 : 53,742.71 = 21,038.96 : x
  2. Step 2: Convert to fraction form
    38,943.98/53,742.71 = 21,038.96/x
  3. Step 3: Cross multiply
    38,943.98x = 53,742.71 × 21,038.96
  4. Step 4: Simplify right side
    38,943.98x = 1,130,690,352.07
  5. Step 5: Solve for x
    x = 1,130,690,352.07/38,943.98
  6. Step 6: Final answer
    x = 29,033.77

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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.