Home / 42,492.96-63,746.73-12,913.79

Finding the Fourth Proportional to 42,492.96, 63,746.73 and 12,913.79

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Solution

The fourth proportional to 42,492.96, 63,746.73 and 12,913.79 is: 19,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,492.96 : 63,746.73 = 12,913.79 : x
  2. Step 2: Convert to fraction form
    42,492.96/63,746.73 = 12,913.79/x
  3. Step 3: Cross multiply
    42,492.96x = 63,746.73 × 12,913.79
  4. Step 4: Simplify right side
    42,492.96x = 823,211,565.67
  5. Step 5: Solve for x
    x = 823,211,565.67/42,492.96
  6. Step 6: Final answer
    x = 19,372.89

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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.