Home / 28,461.68-42,688.88-15,973.91

Finding the Fourth Proportional to 28,461.68, 42,688.88 and 15,973.91

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Solution

The fourth proportional to 28,461.68, 42,688.88 and 15,973.91 is: 23,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.68 : 42,688.88 = 15,973.91 : x
  2. Step 2: Convert to fraction form
    28,461.68/42,688.88 = 15,973.91/x
  3. Step 3: Cross multiply
    28,461.68x = 42,688.88 × 15,973.91
  4. Step 4: Simplify right side
    28,461.68x = 681,908,247.25
  5. Step 5: Solve for x
    x = 681,908,247.25/28,461.68
  6. Step 6: Final answer
    x = 23,958.82

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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.