Home / 21,790.08-30,079.49-14,726.07

Finding the Fourth Proportional to 21,790.08, 30,079.49 and 14,726.07

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Solution

The fourth proportional to 21,790.08, 30,079.49 and 14,726.07 is: 20,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.08 : 30,079.49 = 14,726.07 : x
  2. Step 2: Convert to fraction form
    21,790.08/30,079.49 = 14,726.07/x
  3. Step 3: Cross multiply
    21,790.08x = 30,079.49 × 14,726.07
  4. Step 4: Simplify right side
    21,790.08x = 442,952,601.67
  5. Step 5: Solve for x
    x = 442,952,601.67/21,790.08
  6. Step 6: Final answer
    x = 20,328.18

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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.