Home / 28,307.10-42,472.80-14,456.10

Finding the Fourth Proportional to 28,307.10, 42,472.80 and 14,456.10

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Solution

The fourth proportional to 28,307.10, 42,472.80 and 14,456.10 is: 21,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.10 : 42,472.80 = 14,456.10 : x
  2. Step 2: Convert to fraction form
    28,307.10/42,472.80 = 14,456.10/x
  3. Step 3: Cross multiply
    28,307.10x = 42,472.80 × 14,456.10
  4. Step 4: Simplify right side
    28,307.10x = 613,991,044.08
  5. Step 5: Solve for x
    x = 613,991,044.08/28,307.10
  6. Step 6: Final answer
    x = 21,690.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.