Home / 42,890.40-64,336.08-17,934.24

Finding the Fourth Proportional to 42,890.40, 64,336.08 and 17,934.24

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Solution

The fourth proportional to 42,890.40, 64,336.08 and 17,934.24 is: 26,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,890.40 : 64,336.08 = 17,934.24 : x
  2. Step 2: Convert to fraction form
    42,890.40/64,336.08 = 17,934.24/x
  3. Step 3: Cross multiply
    42,890.40x = 64,336.08 × 17,934.24
  4. Step 4: Simplify right side
    42,890.40x = 1,153,818,699.38
  5. Step 5: Solve for x
    x = 1,153,818,699.38/42,890.40
  6. Step 6: Final answer
    x = 26,901.56

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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.