Home / 30,663.52-42,316.02-18,563.83

Finding the Fourth Proportional to 30,663.52, 42,316.02 and 18,563.83

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Solution

The fourth proportional to 30,663.52, 42,316.02 and 18,563.83 is: 25,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.52 : 42,316.02 = 18,563.83 : x
  2. Step 2: Convert to fraction form
    30,663.52/42,316.02 = 18,563.83/x
  3. Step 3: Cross multiply
    30,663.52x = 42,316.02 × 18,563.83
  4. Step 4: Simplify right side
    30,663.52x = 785,547,295.77
  5. Step 5: Solve for x
    x = 785,547,295.77/30,663.52
  6. Step 6: Final answer
    x = 25,618.30

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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.