Home / 42,445.80-63,668.70-12,862.17

Finding the Fourth Proportional to 42,445.80, 63,668.70 and 12,862.17

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Solution

The fourth proportional to 42,445.80, 63,668.70 and 12,862.17 is: 19,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.80 : 63,668.70 = 12,862.17 : x
  2. Step 2: Convert to fraction form
    42,445.80/63,668.70 = 12,862.17/x
  3. Step 3: Cross multiply
    42,445.80x = 63,668.70 × 12,862.17
  4. Step 4: Simplify right side
    42,445.80x = 818,917,643.08
  5. Step 5: Solve for x
    x = 818,917,643.08/42,445.80
  6. Step 6: Final answer
    x = 19,293.26

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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.