Home / 21,492,012.80-32,238,019.20-20,260,294.40

Finding the Fourth Proportional to 21,492,012.80, 32,238,019.20 and 20,260,294.40

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Solution

The fourth proportional to 21,492,012.80, 32,238,019.20 and 20,260,294.40 is: 30,390,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,012.80 : 32,238,019.20 = 20,260,294.40 : x
  2. Step 2: Convert to fraction form
    21,492,012.80/32,238,019.20 = 20,260,294.40/x
  3. Step 3: Cross multiply
    21,492,012.80x = 32,238,019.20 × 20,260,294.40
  4. Step 4: Simplify right side
    21,492,012.80x = 653,151,759,864,852.38
  5. Step 5: Solve for x
    x = 653,151,759,864,852.38/21,492,012.80
  6. Step 6: Final answer
    x = 30,390,441.60

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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.