Home / 28,979,615.40-43,469,423.10-21,752,017.80

Finding the Fourth Proportional to 28,979,615.40, 43,469,423.10 and 21,752,017.80

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Solution

The fourth proportional to 28,979,615.40, 43,469,423.10 and 21,752,017.80 is: 32,628,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,615.40 : 43,469,423.10 = 21,752,017.80 : x
  2. Step 2: Convert to fraction form
    28,979,615.40/43,469,423.10 = 21,752,017.80/x
  3. Step 3: Cross multiply
    28,979,615.40x = 43,469,423.10 × 21,752,017.80
  4. Step 4: Simplify right side
    28,979,615.40x = 945,547,665,026,931.25
  5. Step 5: Solve for x
    x = 945,547,665,026,931.25/28,979,615.40
  6. Step 6: Final answer
    x = 32,628,026.70

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1.5x scale

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.