Home / 28,060.59-38,698.32-21,677.58

Finding the Fourth Proportional to 28,060.59, 38,698.32 and 21,677.58

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Solution

The fourth proportional to 28,060.59, 38,698.32 and 21,677.58 is: 29,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.59 : 38,698.32 = 21,677.58 : x
  2. Step 2: Convert to fraction form
    28,060.59/38,698.32 = 21,677.58/x
  3. Step 3: Cross multiply
    28,060.59x = 38,698.32 × 21,677.58
  4. Step 4: Simplify right side
    28,060.59x = 838,885,927.67
  5. Step 5: Solve for x
    x = 838,885,927.67/28,060.59
  6. Step 6: Final answer
    x = 29,895.52

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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.