Home / 25,931.02-35,785.53-15,859.28

Finding the Fourth Proportional to 25,931.02, 35,785.53 and 15,859.28

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Solution

The fourth proportional to 25,931.02, 35,785.53 and 15,859.28 is: 21,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,931.02 : 35,785.53 = 15,859.28 : x
  2. Step 2: Convert to fraction form
    25,931.02/35,785.53 = 15,859.28/x
  3. Step 3: Cross multiply
    25,931.02x = 35,785.53 × 15,859.28
  4. Step 4: Simplify right side
    25,931.02x = 567,532,740.22
  5. Step 5: Solve for x
    x = 567,532,740.22/25,931.02
  6. Step 6: Final answer
    x = 21,886.25

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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.