Home / 21,595.34-29,802.59-12,645.73

Finding the Fourth Proportional to 21,595.34, 29,802.59 and 12,645.73

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Solution

The fourth proportional to 21,595.34, 29,802.59 and 12,645.73 is: 17,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.34 : 29,802.59 = 12,645.73 : x
  2. Step 2: Convert to fraction form
    21,595.34/29,802.59 = 12,645.73/x
  3. Step 3: Cross multiply
    21,595.34x = 29,802.59 × 12,645.73
  4. Step 4: Simplify right side
    21,595.34x = 376,875,368.71
  5. Step 5: Solve for x
    x = 376,875,368.71/21,595.34
  6. Step 6: Final answer
    x = 17,451.70

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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.