Home / 19,280.34-28,900.80-10,942.77

Finding the Fourth Proportional to 19,280.34, 28,900.80 and 10,942.77

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Solution

The fourth proportional to 19,280.34, 28,900.80 and 10,942.77 is: 16,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.34 : 28,900.80 = 10,942.77 : x
  2. Step 2: Convert to fraction form
    19,280.34/28,900.80 = 10,942.77/x
  3. Step 3: Cross multiply
    19,280.34x = 28,900.80 × 10,942.77
  4. Step 4: Simplify right side
    19,280.34x = 316,254,807.22
  5. Step 5: Solve for x
    x = 316,254,807.22/19,280.34
  6. Step 6: Final answer
    x = 16,402.97

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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.