Home / 28,924.10-43,386.15-21,148.10

Finding the Fourth Proportional to 28,924.10, 43,386.15 and 21,148.10

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Solution

The fourth proportional to 28,924.10, 43,386.15 and 21,148.10 is: 31,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924.10 : 43,386.15 = 21,148.10 : x
  2. Step 2: Convert to fraction form
    28,924.10/43,386.15 = 21,148.10/x
  3. Step 3: Cross multiply
    28,924.10x = 43,386.15 × 21,148.10
  4. Step 4: Simplify right side
    28,924.10x = 917,534,638.82
  5. Step 5: Solve for x
    x = 917,534,638.82/28,924.10
  6. Step 6: Final answer
    x = 31,722.15

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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.