Home / 28,034,876.88-38,705,643.72-21,495,938.04

Finding the Fourth Proportional to 28,034,876.88, 38,705,643.72 and 21,495,938.04

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Solution

The fourth proportional to 28,034,876.88, 38,705,643.72 and 21,495,938.04 is: 29,677,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034,876.88 : 38,705,643.72 = 21,495,938.04 : x
  2. Step 2: Convert to fraction form
    28,034,876.88/38,705,643.72 = 21,495,938.04/x
  3. Step 3: Cross multiply
    28,034,876.88x = 38,705,643.72 × 21,495,938.04
  4. Step 4: Simplify right side
    28,034,876.88x = 832,014,119,203,435
  5. Step 5: Solve for x
    x = 832,014,119,203,435/28,034,876.88
  6. Step 6: Final answer
    x = 29,677,823.19

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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.