Home / 28,660.06-42,979.02-11,127.52

Finding the Fourth Proportional to 28,660.06, 42,979.02 and 11,127.52

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Solution

The fourth proportional to 28,660.06, 42,979.02 and 11,127.52 is: 16,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.06 : 42,979.02 = 11,127.52 : x
  2. Step 2: Convert to fraction form
    28,660.06/42,979.02 = 11,127.52/x
  3. Step 3: Cross multiply
    28,660.06x = 42,979.02 × 11,127.52
  4. Step 4: Simplify right side
    28,660.06x = 478,249,904.63
  5. Step 5: Solve for x
    x = 478,249,904.63/28,660.06
  6. Step 6: Final answer
    x = 16,686.98

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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.