Home / 21,038.34-29,032.47-11,478.24

Finding the Fourth Proportional to 21,038.34, 29,032.47 and 11,478.24

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Solution

The fourth proportional to 21,038.34, 29,032.47 and 11,478.24 is: 15,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.34 : 29,032.47 = 11,478.24 : x
  2. Step 2: Convert to fraction form
    21,038.34/29,032.47 = 11,478.24/x
  3. Step 3: Cross multiply
    21,038.34x = 29,032.47 × 11,478.24
  4. Step 4: Simplify right side
    21,038.34x = 333,241,658.45
  5. Step 5: Solve for x
    x = 333,241,658.45/21,038.34
  6. Step 6: Final answer
    x = 15,839.73

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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.