Home / 21,332.89-29,440.02-11,901.25

Finding the Fourth Proportional to 21,332.89, 29,440.02 and 11,901.25

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Solution

The fourth proportional to 21,332.89, 29,440.02 and 11,901.25 is: 16,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.89 : 29,440.02 = 11,901.25 : x
  2. Step 2: Convert to fraction form
    21,332.89/29,440.02 = 11,901.25/x
  3. Step 3: Cross multiply
    21,332.89x = 29,440.02 × 11,901.25
  4. Step 4: Simplify right side
    21,332.89x = 350,373,038.03
  5. Step 5: Solve for x
    x = 350,373,038.03/21,332.89
  6. Step 6: Final answer
    x = 16,424.08

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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.