Home / 30,938.04-42,693.20-17,510.03

Finding the Fourth Proportional to 30,938.04, 42,693.20 and 17,510.03

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Solution

The fourth proportional to 30,938.04, 42,693.20 and 17,510.03 is: 24,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.04 : 42,693.20 = 17,510.03 : x
  2. Step 2: Convert to fraction form
    30,938.04/42,693.20 = 17,510.03/x
  3. Step 3: Cross multiply
    30,938.04x = 42,693.20 × 17,510.03
  4. Step 4: Simplify right side
    30,938.04x = 747,559,216.81
  5. Step 5: Solve for x
    x = 747,559,216.81/30,938.04
  6. Step 6: Final answer
    x = 24,163.11

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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.