Home / 21,247.29-29,320.02-12,294.16

Finding the Fourth Proportional to 21,247.29, 29,320.02 and 12,294.16

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Solution

The fourth proportional to 21,247.29, 29,320.02 and 12,294.16 is: 16,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.29 : 29,320.02 = 12,294.16 : x
  2. Step 2: Convert to fraction form
    21,247.29/29,320.02 = 12,294.16/x
  3. Step 3: Cross multiply
    21,247.29x = 29,320.02 × 12,294.16
  4. Step 4: Simplify right side
    21,247.29x = 360,464,955.61
  5. Step 5: Solve for x
    x = 360,464,955.61/21,247.29
  6. Step 6: Final answer
    x = 16,965.22

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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.