Home / 15,827.83-21,942.29-14,985.15

Finding the Fourth Proportional to 15,827.83, 21,942.29 and 14,985.15

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Solution

The fourth proportional to 15,827.83, 21,942.29 and 14,985.15 is: 20,774.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.83 : 21,942.29 = 14,985.15 : x
  2. Step 2: Convert to fraction form
    15,827.83/21,942.29 = 14,985.15/x
  3. Step 3: Cross multiply
    15,827.83x = 21,942.29 × 14,985.15
  4. Step 4: Simplify right side
    15,827.83x = 328,808,462.17
  5. Step 5: Solve for x
    x = 328,808,462.17/15,827.83
  6. Step 6: Final answer
    x = 20,774.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.