Home / 40,319.94-60,430.50-30,428.22

Finding the Fourth Proportional to 40,319.94, 60,430.50 and 30,428.22

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Solution

The fourth proportional to 40,319.94, 60,430.50 and 30,428.22 is: 45,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.94 : 60,430.50 = 30,428.22 : x
  2. Step 2: Convert to fraction form
    40,319.94/60,430.50 = 30,428.22/x
  3. Step 3: Cross multiply
    40,319.94x = 60,430.50 × 30,428.22
  4. Step 4: Simplify right side
    40,319.94x = 1,838,792,548.71
  5. Step 5: Solve for x
    x = 1,838,792,548.71/40,319.94
  6. Step 6: Final answer
    x = 45,605.04

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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.