Home / 28,513.59-42,798.08-20,666.58

Finding the Fourth Proportional to 28,513.59, 42,798.08 and 20,666.58

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Solution

The fourth proportional to 28,513.59, 42,798.08 and 20,666.58 is: 31,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.59 : 42,798.08 = 20,666.58 : x
  2. Step 2: Convert to fraction form
    28,513.59/42,798.08 = 20,666.58/x
  3. Step 3: Cross multiply
    28,513.59x = 42,798.08 × 20,666.58
  4. Step 4: Simplify right side
    28,513.59x = 884,489,944.17
  5. Step 5: Solve for x
    x = 884,489,944.17/28,513.59
  6. Step 6: Final answer
    x = 31,019.94

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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.