Home / 34,725.90-47,920.16-21,294.99

Finding the Fourth Proportional to 34,725.90, 47,920.16 and 21,294.99

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Solution

The fourth proportional to 34,725.90, 47,920.16 and 21,294.99 is: 29,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,725.90 : 47,920.16 = 21,294.99 : x
  2. Step 2: Convert to fraction form
    34,725.90/47,920.16 = 21,294.99/x
  3. Step 3: Cross multiply
    34,725.90x = 47,920.16 × 21,294.99
  4. Step 4: Simplify right side
    34,725.90x = 1,020,459,221.52
  5. Step 5: Solve for x
    x = 1,020,459,221.52/34,725.90
  6. Step 6: Final answer
    x = 29,386.11

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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.