Home / 30,316.02-45,459.05-18,320.54

Finding the Fourth Proportional to 30,316.02, 45,459.05 and 18,320.54

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Solution

The fourth proportional to 30,316.02, 45,459.05 and 18,320.54 is: 27,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,316.02 : 45,459.05 = 18,320.54 : x
  2. Step 2: Convert to fraction form
    30,316.02/45,459.05 = 18,320.54/x
  3. Step 3: Cross multiply
    30,316.02x = 45,459.05 × 18,320.54
  4. Step 4: Simplify right side
    30,316.02x = 832,834,024.99
  5. Step 5: Solve for x
    x = 832,834,024.99/30,316.02
  6. Step 6: Final answer
    x = 27,471.75

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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.