Home / 21,307.24-29,368.74-14,231.08

Finding the Fourth Proportional to 21,307.24, 29,368.74 and 14,231.08

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Solution

The fourth proportional to 21,307.24, 29,368.74 and 14,231.08 is: 19,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,307.24 : 29,368.74 = 14,231.08 : x
  2. Step 2: Convert to fraction form
    21,307.24/29,368.74 = 14,231.08/x
  3. Step 3: Cross multiply
    21,307.24x = 29,368.74 × 14,231.08
  4. Step 4: Simplify right side
    21,307.24x = 417,948,888.44
  5. Step 5: Solve for x
    x = 417,948,888.44/21,307.24
  6. Step 6: Final answer
    x = 19,615.35

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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.