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Finding the Fourth Proportional to 32,547.40, 48,821.10 and 20,146.30

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Solution

The fourth proportional to 32,547.40, 48,821.10 and 20,146.30 is: 30,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,547.40 : 48,821.10 = 20,146.30 : x
  2. Step 2: Convert to fraction form
    32,547.40/48,821.10 = 20,146.30/x
  3. Step 3: Cross multiply
    32,547.40x = 48,821.10 × 20,146.30
  4. Step 4: Simplify right side
    32,547.40x = 983,564,526.93
  5. Step 5: Solve for x
    x = 983,564,526.93/32,547.40
  6. Step 6: Final answer
    x = 30,219.45

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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.