Home / 26,567.28-39,875.55-13,428.90

Finding the Fourth Proportional to 26,567.28, 39,875.55 and 13,428.90

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Solution

The fourth proportional to 26,567.28, 39,875.55 and 13,428.90 is: 20,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,567.28 : 39,875.55 = 13,428.90 : x
  2. Step 2: Convert to fraction form
    26,567.28/39,875.55 = 13,428.90/x
  3. Step 3: Cross multiply
    26,567.28x = 39,875.55 × 13,428.90
  4. Step 4: Simplify right side
    26,567.28x = 535,484,773.40
  5. Step 5: Solve for x
    x = 535,484,773.40/26,567.28
  6. Step 6: Final answer
    x = 20,155.80

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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.