Home / 21,294,016.40-31,893,785.40-18,459,664.40

Finding the Fourth Proportional to 21,294,016.40, 31,893,785.40 and 18,459,664.40

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Solution

The fourth proportional to 21,294,016.40, 31,893,785.40 and 18,459,664.40 is: 27,648,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,016.40 : 31,893,785.40 = 18,459,664.40 : x
  2. Step 2: Convert to fraction form
    21,294,016.40/31,893,785.40 = 18,459,664.40/x
  3. Step 3: Cross multiply
    21,294,016.40x = 31,893,785.40 × 18,459,664.40
  4. Step 4: Simplify right side
    21,294,016.40x = 588,748,574,929,619.62
  5. Step 5: Solve for x
    x = 588,748,574,929,619.62/21,294,016.40
  6. Step 6: Final answer
    x = 27,648,545.20

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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.