Home / 30,547.13-45,820.70-12,079.13

Finding the Fourth Proportional to 30,547.13, 45,820.70 and 12,079.13

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Solution

The fourth proportional to 30,547.13, 45,820.70 and 12,079.13 is: 18,118.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547.13 : 45,820.70 = 12,079.13 : x
  2. Step 2: Convert to fraction form
    30,547.13/45,820.70 = 12,079.13/x
  3. Step 3: Cross multiply
    30,547.13x = 45,820.70 × 12,079.13
  4. Step 4: Simplify right side
    30,547.13x = 553,474,191.99
  5. Step 5: Solve for x
    x = 553,474,191.99/30,547.13
  6. Step 6: Final answer
    x = 18,118.70

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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.