Home / 28,080.10-42,100.64-10,545.22

Finding the Fourth Proportional to 28,080.10, 42,100.64 and 10,545.22

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Solution

The fourth proportional to 28,080.10, 42,100.64 and 10,545.22 is: 15,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.10 : 42,100.64 = 10,545.22 : x
  2. Step 2: Convert to fraction form
    28,080.10/42,100.64 = 10,545.22/x
  3. Step 3: Cross multiply
    28,080.10x = 42,100.64 × 10,545.22
  4. Step 4: Simplify right side
    28,080.10x = 443,960,510.94
  5. Step 5: Solve for x
    x = 443,960,510.94/28,080.10
  6. Step 6: Final answer
    x = 15,810.50

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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.