Home / 30,453.04-45,646.02-19,918.72

Finding the Fourth Proportional to 30,453.04, 45,646.02 and 19,918.72

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Solution

The fourth proportional to 30,453.04, 45,646.02 and 19,918.72 is: 29,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.04 : 45,646.02 = 19,918.72 : x
  2. Step 2: Convert to fraction form
    30,453.04/45,646.02 = 19,918.72/x
  3. Step 3: Cross multiply
    30,453.04x = 45,646.02 × 19,918.72
  4. Step 4: Simplify right side
    30,453.04x = 909,210,291.49
  5. Step 5: Solve for x
    x = 909,210,291.49/30,453.04
  6. Step 6: Final answer
    x = 29,856.14

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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.