Home / 42,569.16-63,853.74-12,986.34

Finding the Fourth Proportional to 42,569.16, 63,853.74 and 12,986.34

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Solution

The fourth proportional to 42,569.16, 63,853.74 and 12,986.34 is: 19,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,569.16 : 63,853.74 = 12,986.34 : x
  2. Step 2: Convert to fraction form
    42,569.16/63,853.74 = 12,986.34/x
  3. Step 3: Cross multiply
    42,569.16x = 63,853.74 × 12,986.34
  4. Step 4: Simplify right side
    42,569.16x = 829,226,377.91
  5. Step 5: Solve for x
    x = 829,226,377.91/42,569.16
  6. Step 6: Final answer
    x = 19,479.51

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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.