Home / 28,165.60-42,248.40-26,437.60

Finding the Fourth Proportional to 28,165.60, 42,248.40 and 26,437.60

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Solution

The fourth proportional to 28,165.60, 42,248.40 and 26,437.60 is: 39,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.60 : 42,248.40 = 26,437.60 : x
  2. Step 2: Convert to fraction form
    28,165.60/42,248.40 = 26,437.60/x
  3. Step 3: Cross multiply
    28,165.60x = 42,248.40 × 26,437.60
  4. Step 4: Simplify right side
    28,165.60x = 1,116,946,299.84
  5. Step 5: Solve for x
    x = 1,116,946,299.84/28,165.60
  6. Step 6: Final answer
    x = 39,656.40

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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.