Home / 42,430.12-63,645.33-14,350.40

Finding the Fourth Proportional to 42,430.12, 63,645.33 and 14,350.40

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Solution

The fourth proportional to 42,430.12, 63,645.33 and 14,350.40 is: 21,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,430.12 : 63,645.33 = 14,350.40 : x
  2. Step 2: Convert to fraction form
    42,430.12/63,645.33 = 14,350.40/x
  3. Step 3: Cross multiply
    42,430.12x = 63,645.33 × 14,350.40
  4. Step 4: Simplify right side
    42,430.12x = 913,335,943.63
  5. Step 5: Solve for x
    x = 913,335,943.63/42,430.12
  6. Step 6: Final answer
    x = 21,525.65

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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.