Home / 42,888.66-64,344.52-17,920.40

Finding the Fourth Proportional to 42,888.66, 64,344.52 and 17,920.40

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Solution

The fourth proportional to 42,888.66, 64,344.52 and 17,920.40 is: 26,885.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,888.66 : 64,344.52 = 17,920.40 : x
  2. Step 2: Convert to fraction form
    42,888.66/64,344.52 = 17,920.40/x
  3. Step 3: Cross multiply
    42,888.66x = 64,344.52 × 17,920.40
  4. Step 4: Simplify right side
    42,888.66x = 1,153,079,536.21
  5. Step 5: Solve for x
    x = 1,153,079,536.21/42,888.66
  6. Step 6: Final answer
    x = 26,885.42

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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.