Home / 28,957.08-39,937.50-18,884.76

Finding the Fourth Proportional to 28,957.08, 39,937.50 and 18,884.76

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Solution

The fourth proportional to 28,957.08, 39,937.50 and 18,884.76 is: 26,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.08 : 39,937.50 = 18,884.76 : x
  2. Step 2: Convert to fraction form
    28,957.08/39,937.50 = 18,884.76/x
  3. Step 3: Cross multiply
    28,957.08x = 39,937.50 × 18,884.76
  4. Step 4: Simplify right side
    28,957.08x = 754,210,102.50
  5. Step 5: Solve for x
    x = 754,210,102.50/28,957.08
  6. Step 6: Final answer
    x = 26,045.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.