Home / 42,859.05-64,298.84-17,885.21

Finding the Fourth Proportional to 42,859.05, 64,298.84 and 17,885.21

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Solution

The fourth proportional to 42,859.05, 64,298.84 and 17,885.21 is: 26,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,859.05 : 64,298.84 = 17,885.21 : x
  2. Step 2: Convert to fraction form
    42,859.05/64,298.84 = 17,885.21/x
  3. Step 3: Cross multiply
    42,859.05x = 64,298.84 × 17,885.21
  4. Step 4: Simplify right side
    42,859.05x = 1,149,998,256.16
  5. Step 5: Solve for x
    x = 1,149,998,256.16/42,859.05
  6. Step 6: Final answer
    x = 26,832.10

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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.