Home / 21,402.02-32,085.63-8,931.33

Finding the Fourth Proportional to 21,402.02, 32,085.63 and 8,931.33

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Solution

The fourth proportional to 21,402.02, 32,085.63 and 8,931.33 is: 13,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.02 : 32,085.63 = 8,931.33 : x
  2. Step 2: Convert to fraction form
    21,402.02/32,085.63 = 8,931.33/x
  3. Step 3: Cross multiply
    21,402.02x = 32,085.63 × 8,931.33
  4. Step 4: Simplify right side
    21,402.02x = 286,567,349.79
  5. Step 5: Solve for x
    x = 286,567,349.79/21,402.02
  6. Step 6: Final answer
    x = 13,389.73

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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.