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Finding the Fourth Proportional to 35,122.40, 48,482.16 and 20,970.08

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Solution

The fourth proportional to 35,122.40, 48,482.16 and 20,970.08 is: 28,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,122.40 : 48,482.16 = 20,970.08 : x
  2. Step 2: Convert to fraction form
    35,122.40/48,482.16 = 20,970.08/x
  3. Step 3: Cross multiply
    35,122.40x = 48,482.16 × 20,970.08
  4. Step 4: Simplify right side
    35,122.40x = 1,016,674,773.77
  5. Step 5: Solve for x
    x = 1,016,674,773.77/35,122.40
  6. Step 6: Final answer
    x = 28,946.62

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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.