Home / 28,688.08-39,585.88-16,742.76

Finding the Fourth Proportional to 28,688.08, 39,585.88 and 16,742.76

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Solution

The fourth proportional to 28,688.08, 39,585.88 and 16,742.76 is: 23,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.08 : 39,585.88 = 16,742.76 : x
  2. Step 2: Convert to fraction form
    28,688.08/39,585.88 = 16,742.76/x
  3. Step 3: Cross multiply
    28,688.08x = 39,585.88 × 16,742.76
  4. Step 4: Simplify right side
    28,688.08x = 662,776,888.23
  5. Step 5: Solve for x
    x = 662,776,888.23/28,688.08
  6. Step 6: Final answer
    x = 23,102.87

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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.