Home / 42,366.16-63,557.52-12,786.40

Finding the Fourth Proportional to 42,366.16, 63,557.52 and 12,786.40

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Solution

The fourth proportional to 42,366.16, 63,557.52 and 12,786.40 is: 19,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,366.16 : 63,557.52 = 12,786.40 : x
  2. Step 2: Convert to fraction form
    42,366.16/63,557.52 = 12,786.40/x
  3. Step 3: Cross multiply
    42,366.16x = 63,557.52 × 12,786.40
  4. Step 4: Simplify right side
    42,366.16x = 812,671,873.73
  5. Step 5: Solve for x
    x = 812,671,873.73/42,366.16
  6. Step 6: Final answer
    x = 19,182.10

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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.