Home / 22,686.86-31,307.99-13,732.12

Finding the Fourth Proportional to 22,686.86, 31,307.99 and 13,732.12

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Solution

The fourth proportional to 22,686.86, 31,307.99 and 13,732.12 is: 18,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.86 : 31,307.99 = 13,732.12 : x
  2. Step 2: Convert to fraction form
    22,686.86/31,307.99 = 13,732.12/x
  3. Step 3: Cross multiply
    22,686.86x = 31,307.99 × 13,732.12
  4. Step 4: Simplify right side
    22,686.86x = 429,925,075.64
  5. Step 5: Solve for x
    x = 429,925,075.64/22,686.86
  6. Step 6: Final answer
    x = 18,950.40

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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.