Home / 23,421.12-32,316-15,868.80

Finding the Fourth Proportional to 23,421.12, 32,316 and 15,868.80

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Solution

The fourth proportional to 23,421.12, 32,316 and 15,868.80 is: 21,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,421.12 : 32,316 = 15,868.80 : x
  2. Step 2: Convert to fraction form
    23,421.12/32,316 = 15,868.80/x
  3. Step 3: Cross multiply
    23,421.12x = 32,316 × 15,868.80
  4. Step 4: Simplify right side
    23,421.12x = 512,816,140.80
  5. Step 5: Solve for x
    x = 512,816,140.80/23,421.12
  6. Step 6: Final answer
    x = 21,895.46

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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.