Home / 21,710,429.21-29,960,392.46-11,920,873.39

Finding the Fourth Proportional to 21,710,429.21, 29,960,392.46 and 11,920,873.39

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Solution

The fourth proportional to 21,710,429.21, 29,960,392.46 and 11,920,873.39 is: 16,450,805.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710,429.21 : 29,960,392.46 = 11,920,873.39 : x
  2. Step 2: Convert to fraction form
    21,710,429.21/29,960,392.46 = 11,920,873.39/x
  3. Step 3: Cross multiply
    21,710,429.21x = 29,960,392.46 × 11,920,873.39
  4. Step 4: Simplify right side
    21,710,429.21x = 357,154,045,095,865.25
  5. Step 5: Solve for x
    x = 357,154,045,095,865.25/21,710,429.21
  6. Step 6: Final answer
    x = 16,450,805.36

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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.