Home / 21,779.09-30,061.02-14,225.26

Finding the Fourth Proportional to 21,779.09, 30,061.02 and 14,225.26

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Solution

The fourth proportional to 21,779.09, 30,061.02 and 14,225.26 is: 19,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.09 : 30,061.02 = 14,225.26 : x
  2. Step 2: Convert to fraction form
    21,779.09/30,061.02 = 14,225.26/x
  3. Step 3: Cross multiply
    21,779.09x = 30,061.02 × 14,225.26
  4. Step 4: Simplify right side
    21,779.09x = 427,625,779.90
  5. Step 5: Solve for x
    x = 427,625,779.90/21,779.09
  6. Step 6: Final answer
    x = 19,634.70

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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.