Home / 30,510.11-42,099.10-17,081.93

Finding the Fourth Proportional to 30,510.11, 42,099.10 and 17,081.93

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Solution

The fourth proportional to 30,510.11, 42,099.10 and 17,081.93 is: 23,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.11 : 42,099.10 = 17,081.93 : x
  2. Step 2: Convert to fraction form
    30,510.11/42,099.10 = 17,081.93/x
  3. Step 3: Cross multiply
    30,510.11x = 42,099.10 × 17,081.93
  4. Step 4: Simplify right side
    30,510.11x = 719,133,941.81
  5. Step 5: Solve for x
    x = 719,133,941.81/30,510.11
  6. Step 6: Final answer
    x = 23,570.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.