Home / 28,390.32-42,566.94-13,598.76

Finding the Fourth Proportional to 28,390.32, 42,566.94 and 13,598.76

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Solution

The fourth proportional to 28,390.32, 42,566.94 and 13,598.76 is: 20,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.32 : 42,566.94 = 13,598.76 : x
  2. Step 2: Convert to fraction form
    28,390.32/42,566.94 = 13,598.76/x
  3. Step 3: Cross multiply
    28,390.32x = 42,566.94 × 13,598.76
  4. Step 4: Simplify right side
    28,390.32x = 578,857,600.99
  5. Step 5: Solve for x
    x = 578,857,600.99/28,390.32
  6. Step 6: Final answer
    x = 20,389.26

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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.